Links to Exploration step
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Human phenotype ontology annotation and cluster analysis to unravel genetic defects in 707 cases with unexplained bleeding and platelet disorders</title><author><name sortKey="Westbury, Sarah K" sort="Westbury, Sarah K" uniqKey="Westbury S" first="Sarah K" last="Westbury">Sarah K. Westbury</name><affiliation><nlm:aff id="Aff1">School of Clinical Sciences, University of Bristol, Bristol, UK</nlm:aff></affiliation></author><author><name sortKey="Turro, Ernest" sort="Turro, Ernest" uniqKey="Turro E" first="Ernest" last="Turro">Ernest Turro</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Greene, Daniel" sort="Greene, Daniel" uniqKey="Greene D" first="Daniel" last="Greene">Daniel Greene</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Lentaigne, Claire" sort="Lentaigne, Claire" uniqKey="Lentaigne C" first="Claire" last="Lentaigne">Claire Lentaigne</name><affiliation><nlm:aff id="Aff4">Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff5">Imperial College Healthcare NHS Trust, DuCane Road, London, UK</nlm:aff></affiliation></author><author><name sortKey="Kelly, Anne M" sort="Kelly, Anne M" uniqKey="Kelly A" first="Anne M" last="Kelly">Anne M. Kelly</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Bariana, Tadbir K" sort="Bariana, Tadbir K" uniqKey="Bariana T" first="Tadbir K" last="Bariana">Tadbir K. Bariana</name><affiliation><nlm:aff id="Aff6">Department of Haematology, University College London Cancer Institute, London, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff7">The Katharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free London NHS Foundation Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Simeoni, Ilenia" sort="Simeoni, Ilenia" uniqKey="Simeoni I" first="Ilenia" last="Simeoni">Ilenia Simeoni</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Pillois, Xavier" sort="Pillois, Xavier" uniqKey="Pillois X" first="Xavier" last="Pillois">Xavier Pillois</name><affiliation><nlm:aff id="Aff9">Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</nlm:aff></affiliation></author><author><name sortKey="Attwood, Antony" sort="Attwood, Antony" uniqKey="Attwood A" first="Antony" last="Attwood">Antony Attwood</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Austin, Steve" sort="Austin, Steve" uniqKey="Austin S" first="Steve" last="Austin">Steve Austin</name><affiliation><nlm:aff id="Aff10">Department of Haematology, Guys and St Thomas’ NHS Foundation Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Jansen, Sjoert Bg" sort="Jansen, Sjoert Bg" uniqKey="Jansen S" first="Sjoert Bg" last="Jansen">Sjoert Bg Jansen</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Bakchoul, Tamam" sort="Bakchoul, Tamam" uniqKey="Bakchoul T" first="Tamam" last="Bakchoul">Tamam Bakchoul</name><affiliation><nlm:aff id="Aff11">Institut für Immunologie und Transfusionsmedizin Universitätsmedizin Ernst-Moritz-Arndt Universität, Greifswald, Germany</nlm:aff></affiliation></author><author><name sortKey="Crisp Hihn, Abi" sort="Crisp Hihn, Abi" uniqKey="Crisp Hihn A" first="Abi" last="Crisp-Hihn">Abi Crisp-Hihn</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Erber, Wendy N" sort="Erber, Wendy N" uniqKey="Erber W" first="Wendy N" last="Erber">Wendy N. Erber</name><affiliation><nlm:aff id="Aff12">Pathology and Laboratory Medicine, University of Western Australia, Crawley, WA Australia</nlm:aff></affiliation></author><author><name sortKey="Favier, Remi" sort="Favier, Remi" uniqKey="Favier R" first="Rémi" last="Favier">Rémi Favier</name><affiliation><nlm:aff id="Aff13">Haematological Laboratory, Trousseau Children’s Hospital and INsermU1009, Paris, France</nlm:aff></affiliation></author><author><name sortKey="Foad, Nicola" sort="Foad, Nicola" uniqKey="Foad N" first="Nicola" last="Foad">Nicola Foad</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Gattens, Michael" sort="Gattens, Michael" uniqKey="Gattens M" first="Michael" last="Gattens">Michael Gattens</name><affiliation><nlm:aff id="Aff14">Department of Haematology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Jolley, Jennifer D" sort="Jolley, Jennifer D" uniqKey="Jolley J" first="Jennifer D" last="Jolley">Jennifer D. Jolley</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Liesner, Ri" sort="Liesner, Ri" uniqKey="Liesner R" first="Ri" last="Liesner">Ri Liesner</name><affiliation><nlm:aff id="Aff15">Department of Haematology, Great Ormond Street Hospital for Children NHS Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Meacham, Stuart" sort="Meacham, Stuart" uniqKey="Meacham S" first="Stuart" last="Meacham">Stuart Meacham</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Millar, Carolyn M" sort="Millar, Carolyn M" uniqKey="Millar C" first="Carolyn M" last="Millar">Carolyn M. Millar</name><affiliation><nlm:aff id="Aff4">Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff5">Imperial College Healthcare NHS Trust, DuCane Road, London, UK</nlm:aff></affiliation></author><author><name sortKey="Nurden, Alan T" sort="Nurden, Alan T" uniqKey="Nurden A" first="Alan T" last="Nurden">Alan T. Nurden</name><affiliation><nlm:aff id="Aff9">Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</nlm:aff></affiliation></author><author><name sortKey="Peerlinck, Kathelijne" sort="Peerlinck, Kathelijne" uniqKey="Peerlinck K" first="Kathelijne" last="Peerlinck">Kathelijne Peerlinck</name><affiliation><nlm:aff id="Aff16">Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</nlm:aff></affiliation></author><author><name sortKey="Perry, David J" sort="Perry, David J" uniqKey="Perry D" first="David J" last="Perry">David J. Perry</name><affiliation><nlm:aff id="Aff14">Department of Haematology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Poudel, Pawan" sort="Poudel, Pawan" uniqKey="Poudel P" first="Pawan" last="Poudel">Pawan Poudel</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Schulman, Sol" sort="Schulman, Sol" uniqKey="Schulman S" first="Sol" last="Schulman">Sol Schulman</name><affiliation><nlm:aff id="Aff17">Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, USA</nlm:aff></affiliation></author><author><name sortKey="Schulze, Harald" sort="Schulze, Harald" uniqKey="Schulze H" first="Harald" last="Schulze">Harald Schulze</name><affiliation><nlm:aff id="Aff18">Lehrstuhl für Experimentelle Biomedizin, Universitätsklinikum Würzburg, Würzburg, Germany</nlm:aff></affiliation></author><author><name sortKey="Stephens, Jonathan C" sort="Stephens, Jonathan C" uniqKey="Stephens J" first="Jonathan C" last="Stephens">Jonathan C. Stephens</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Furie, Bruce" sort="Furie, Bruce" uniqKey="Furie B" first="Bruce" last="Furie">Bruce Furie</name><affiliation><nlm:aff id="Aff17">Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, USA</nlm:aff></affiliation></author><author><name sortKey="Robinson, Peter N" sort="Robinson, Peter N" uniqKey="Robinson P" first="Peter N" last="Robinson">Peter N. Robinson</name><affiliation><nlm:aff id="Aff19">Institut für Medizinische Genetik und Humangenetik, Charité Universitätsmedizin, Berlin, Germany</nlm:aff></affiliation><affiliation><nlm:aff id="Aff20">Max Planck Institute for Molecular Genetics, Berlin, Germany</nlm:aff></affiliation><affiliation><nlm:aff id="Aff21">Institute for Bioinformatics, Department of Mathematics and Computer Science Freie Universität, Berlin, Germany</nlm:aff></affiliation></author><author><name sortKey="Van Geet, Chris" sort="Van Geet, Chris" uniqKey="Van Geet C" first="Chris" last="Van Geet">Chris Van Geet</name><affiliation><nlm:aff id="Aff16">Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</nlm:aff></affiliation></author><author><name sortKey="Rendon, Augusto" sort="Rendon, Augusto" uniqKey="Rendon A" first="Augusto" last="Rendon">Augusto Rendon</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Gomez, Keith" sort="Gomez, Keith" uniqKey="Gomez K" first="Keith" last="Gomez">Keith Gomez</name><affiliation><nlm:aff id="Aff7">The Katharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free London NHS Foundation Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Laffan, Michael A" sort="Laffan, Michael A" uniqKey="Laffan M" first="Michael A" last="Laffan">Michael A. Laffan</name><affiliation><nlm:aff id="Aff4">Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</nlm:aff></affiliation></author><author><name sortKey="Lambert, Michele P" sort="Lambert, Michele P" uniqKey="Lambert M" first="Michele P" last="Lambert">Michele P. Lambert</name><affiliation><nlm:aff id="Aff22">Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, USA</nlm:aff></affiliation><affiliation><nlm:aff id="Aff23">Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA</nlm:aff></affiliation></author><author><name sortKey="Nurden, Paquita" sort="Nurden, Paquita" uniqKey="Nurden P" first="Paquita" last="Nurden">Paquita Nurden</name><affiliation><nlm:aff id="Aff9">Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</nlm:aff></affiliation></author><author><name sortKey="Ouwehand, Willem H" sort="Ouwehand, Willem H" uniqKey="Ouwehand W" first="Willem H" last="Ouwehand">Willem H. Ouwehand</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff24">Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Richardson, Sylvia" sort="Richardson, Sylvia" uniqKey="Richardson S" first="Sylvia" last="Richardson">Sylvia Richardson</name><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Mumford, Andrew D" sort="Mumford, Andrew D" uniqKey="Mumford A" first="Andrew D" last="Mumford">Andrew D. Mumford</name><affiliation><nlm:aff id="Aff25">School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK</nlm:aff></affiliation></author><author><name sortKey="Freson, Kathleen" sort="Freson, Kathleen" uniqKey="Freson K" first="Kathleen" last="Freson">Kathleen Freson</name><affiliation><nlm:aff id="Aff16">Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25949529</idno><idno type="pmc">4422517</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4422517</idno><idno type="RBID">PMC:4422517</idno><idno type="doi">10.1186/s13073-015-0151-5</idno><date when="2015">2015</date><idno type="wicri:Area/Pmc/Corpus">000D17</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000D17</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Human phenotype ontology annotation and cluster analysis to unravel genetic defects in 707 cases with unexplained bleeding and platelet disorders</title><author><name sortKey="Westbury, Sarah K" sort="Westbury, Sarah K" uniqKey="Westbury S" first="Sarah K" last="Westbury">Sarah K. Westbury</name><affiliation><nlm:aff id="Aff1">School of Clinical Sciences, University of Bristol, Bristol, UK</nlm:aff></affiliation></author><author><name sortKey="Turro, Ernest" sort="Turro, Ernest" uniqKey="Turro E" first="Ernest" last="Turro">Ernest Turro</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Greene, Daniel" sort="Greene, Daniel" uniqKey="Greene D" first="Daniel" last="Greene">Daniel Greene</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Lentaigne, Claire" sort="Lentaigne, Claire" uniqKey="Lentaigne C" first="Claire" last="Lentaigne">Claire Lentaigne</name><affiliation><nlm:aff id="Aff4">Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff5">Imperial College Healthcare NHS Trust, DuCane Road, London, UK</nlm:aff></affiliation></author><author><name sortKey="Kelly, Anne M" sort="Kelly, Anne M" uniqKey="Kelly A" first="Anne M" last="Kelly">Anne M. Kelly</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Bariana, Tadbir K" sort="Bariana, Tadbir K" uniqKey="Bariana T" first="Tadbir K" last="Bariana">Tadbir K. Bariana</name><affiliation><nlm:aff id="Aff6">Department of Haematology, University College London Cancer Institute, London, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff7">The Katharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free London NHS Foundation Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Simeoni, Ilenia" sort="Simeoni, Ilenia" uniqKey="Simeoni I" first="Ilenia" last="Simeoni">Ilenia Simeoni</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Pillois, Xavier" sort="Pillois, Xavier" uniqKey="Pillois X" first="Xavier" last="Pillois">Xavier Pillois</name><affiliation><nlm:aff id="Aff9">Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</nlm:aff></affiliation></author><author><name sortKey="Attwood, Antony" sort="Attwood, Antony" uniqKey="Attwood A" first="Antony" last="Attwood">Antony Attwood</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Austin, Steve" sort="Austin, Steve" uniqKey="Austin S" first="Steve" last="Austin">Steve Austin</name><affiliation><nlm:aff id="Aff10">Department of Haematology, Guys and St Thomas’ NHS Foundation Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Jansen, Sjoert Bg" sort="Jansen, Sjoert Bg" uniqKey="Jansen S" first="Sjoert Bg" last="Jansen">Sjoert Bg Jansen</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Bakchoul, Tamam" sort="Bakchoul, Tamam" uniqKey="Bakchoul T" first="Tamam" last="Bakchoul">Tamam Bakchoul</name><affiliation><nlm:aff id="Aff11">Institut für Immunologie und Transfusionsmedizin Universitätsmedizin Ernst-Moritz-Arndt Universität, Greifswald, Germany</nlm:aff></affiliation></author><author><name sortKey="Crisp Hihn, Abi" sort="Crisp Hihn, Abi" uniqKey="Crisp Hihn A" first="Abi" last="Crisp-Hihn">Abi Crisp-Hihn</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Erber, Wendy N" sort="Erber, Wendy N" uniqKey="Erber W" first="Wendy N" last="Erber">Wendy N. Erber</name><affiliation><nlm:aff id="Aff12">Pathology and Laboratory Medicine, University of Western Australia, Crawley, WA Australia</nlm:aff></affiliation></author><author><name sortKey="Favier, Remi" sort="Favier, Remi" uniqKey="Favier R" first="Rémi" last="Favier">Rémi Favier</name><affiliation><nlm:aff id="Aff13">Haematological Laboratory, Trousseau Children’s Hospital and INsermU1009, Paris, France</nlm:aff></affiliation></author><author><name sortKey="Foad, Nicola" sort="Foad, Nicola" uniqKey="Foad N" first="Nicola" last="Foad">Nicola Foad</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Gattens, Michael" sort="Gattens, Michael" uniqKey="Gattens M" first="Michael" last="Gattens">Michael Gattens</name><affiliation><nlm:aff id="Aff14">Department of Haematology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Jolley, Jennifer D" sort="Jolley, Jennifer D" uniqKey="Jolley J" first="Jennifer D" last="Jolley">Jennifer D. Jolley</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Liesner, Ri" sort="Liesner, Ri" uniqKey="Liesner R" first="Ri" last="Liesner">Ri Liesner</name><affiliation><nlm:aff id="Aff15">Department of Haematology, Great Ormond Street Hospital for Children NHS Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Meacham, Stuart" sort="Meacham, Stuart" uniqKey="Meacham S" first="Stuart" last="Meacham">Stuart Meacham</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Millar, Carolyn M" sort="Millar, Carolyn M" uniqKey="Millar C" first="Carolyn M" last="Millar">Carolyn M. Millar</name><affiliation><nlm:aff id="Aff4">Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff5">Imperial College Healthcare NHS Trust, DuCane Road, London, UK</nlm:aff></affiliation></author><author><name sortKey="Nurden, Alan T" sort="Nurden, Alan T" uniqKey="Nurden A" first="Alan T" last="Nurden">Alan T. Nurden</name><affiliation><nlm:aff id="Aff9">Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</nlm:aff></affiliation></author><author><name sortKey="Peerlinck, Kathelijne" sort="Peerlinck, Kathelijne" uniqKey="Peerlinck K" first="Kathelijne" last="Peerlinck">Kathelijne Peerlinck</name><affiliation><nlm:aff id="Aff16">Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</nlm:aff></affiliation></author><author><name sortKey="Perry, David J" sort="Perry, David J" uniqKey="Perry D" first="David J" last="Perry">David J. Perry</name><affiliation><nlm:aff id="Aff14">Department of Haematology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Poudel, Pawan" sort="Poudel, Pawan" uniqKey="Poudel P" first="Pawan" last="Poudel">Pawan Poudel</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Schulman, Sol" sort="Schulman, Sol" uniqKey="Schulman S" first="Sol" last="Schulman">Sol Schulman</name><affiliation><nlm:aff id="Aff17">Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, USA</nlm:aff></affiliation></author><author><name sortKey="Schulze, Harald" sort="Schulze, Harald" uniqKey="Schulze H" first="Harald" last="Schulze">Harald Schulze</name><affiliation><nlm:aff id="Aff18">Lehrstuhl für Experimentelle Biomedizin, Universitätsklinikum Würzburg, Würzburg, Germany</nlm:aff></affiliation></author><author><name sortKey="Stephens, Jonathan C" sort="Stephens, Jonathan C" uniqKey="Stephens J" first="Jonathan C" last="Stephens">Jonathan C. Stephens</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Furie, Bruce" sort="Furie, Bruce" uniqKey="Furie B" first="Bruce" last="Furie">Bruce Furie</name><affiliation><nlm:aff id="Aff17">Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, USA</nlm:aff></affiliation></author><author><name sortKey="Robinson, Peter N" sort="Robinson, Peter N" uniqKey="Robinson P" first="Peter N" last="Robinson">Peter N. Robinson</name><affiliation><nlm:aff id="Aff19">Institut für Medizinische Genetik und Humangenetik, Charité Universitätsmedizin, Berlin, Germany</nlm:aff></affiliation><affiliation><nlm:aff id="Aff20">Max Planck Institute for Molecular Genetics, Berlin, Germany</nlm:aff></affiliation><affiliation><nlm:aff id="Aff21">Institute for Bioinformatics, Department of Mathematics and Computer Science Freie Universität, Berlin, Germany</nlm:aff></affiliation></author><author><name sortKey="Van Geet, Chris" sort="Van Geet, Chris" uniqKey="Van Geet C" first="Chris" last="Van Geet">Chris Van Geet</name><affiliation><nlm:aff id="Aff16">Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</nlm:aff></affiliation></author><author><name sortKey="Rendon, Augusto" sort="Rendon, Augusto" uniqKey="Rendon A" first="Augusto" last="Rendon">Augusto Rendon</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Gomez, Keith" sort="Gomez, Keith" uniqKey="Gomez K" first="Keith" last="Gomez">Keith Gomez</name><affiliation><nlm:aff id="Aff7">The Katharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free London NHS Foundation Trust, London, UK</nlm:aff></affiliation></author><author><name sortKey="Laffan, Michael A" sort="Laffan, Michael A" uniqKey="Laffan M" first="Michael A" last="Laffan">Michael A. Laffan</name><affiliation><nlm:aff id="Aff4">Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</nlm:aff></affiliation></author><author><name sortKey="Lambert, Michele P" sort="Lambert, Michele P" uniqKey="Lambert M" first="Michele P" last="Lambert">Michele P. Lambert</name><affiliation><nlm:aff id="Aff22">Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, USA</nlm:aff></affiliation><affiliation><nlm:aff id="Aff23">Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA</nlm:aff></affiliation></author><author><name sortKey="Nurden, Paquita" sort="Nurden, Paquita" uniqKey="Nurden P" first="Paquita" last="Nurden">Paquita Nurden</name><affiliation><nlm:aff id="Aff9">Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</nlm:aff></affiliation></author><author><name sortKey="Ouwehand, Willem H" sort="Ouwehand, Willem H" uniqKey="Ouwehand W" first="Willem H" last="Ouwehand">Willem H. Ouwehand</name><affiliation><nlm:aff id="Aff2">Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff3">NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation><affiliation><nlm:aff id="Aff24">Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Richardson, Sylvia" sort="Richardson, Sylvia" uniqKey="Richardson S" first="Sylvia" last="Richardson">Sylvia Richardson</name><affiliation><nlm:aff id="Aff8">Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</nlm:aff></affiliation></author><author><name sortKey="Mumford, Andrew D" sort="Mumford, Andrew D" uniqKey="Mumford A" first="Andrew D" last="Mumford">Andrew D. Mumford</name><affiliation><nlm:aff id="Aff25">School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK</nlm:aff></affiliation></author><author><name sortKey="Freson, Kathleen" sort="Freson, Kathleen" uniqKey="Freson K" first="Kathleen" last="Freson">Kathleen Freson</name><affiliation><nlm:aff id="Aff16">Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</nlm:aff></affiliation></author></analytic><series><title level="j">Genome Medicine</title><idno type="eISSN">1756-994X</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>Heritable bleeding and platelet disorders (BPD) are heterogeneous and frequently have an unknown genetic basis. The BRIDGE-BPD study aims to discover new causal genes for BPD by high throughput sequencing using cluster analyses based on improved and standardised deep, multi-system phenotyping of cases.</p></sec><sec><title>Methods</title><p>We report a new approach in which the clinical and laboratory characteristics of BPD cases are annotated with adapted Human Phenotype Ontology (HPO) terms. Cluster analyses are then used to characterise groups of cases with similar HPO terms and variants in the same genes.</p></sec><sec><title>Results</title><p>We show that 60% of index cases with heritable BPD enrolled at 10 European or US centres were annotated with HPO terms indicating abnormalities in organ systems other than blood or blood-forming tissues, particularly the nervous system. Cases within pedigrees clustered closely together on the bases of their HPO-coded phenotypes, as did cases sharing several clinically suspected syndromic disorders. Cases subsequently found to harbour variants in <italic>ACTN1</italic> also clustered closely, even though diagnosis of this recently described disorder was not possible using only the clinical and laboratory data available to the enrolling clinician.</p></sec><sec><title>Conclusions</title><p>These findings validate our novel HPO-based phenotype clustering methodology for known BPD, thus providing a new discovery tool for BPD of unknown genetic basis. This approach will also be relevant for other rare diseases with significant genetic heterogeneity.</p></sec><sec><title>Electronic supplementary material</title><p>The online version of this article (doi:10.1186/s13073-015-0151-5) contains supplementary material, which is available to authorized users.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Harrison, P" uniqKey="Harrison P">P Harrison</name></author><author><name sortKey="Mackie, I" uniqKey="Mackie I">I Mackie</name></author><author><name sortKey="Mumford, A" uniqKey="Mumford A">A Mumford</name></author><author><name sortKey="Briggs, C" uniqKey="Briggs C">C Briggs</name></author><author><name sortKey="Liesner, R" uniqKey="Liesner R">R Liesner</name></author><author><name sortKey="Winter, M" uniqKey="Winter M">M Winter</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bolton Maggs, Ph" uniqKey="Bolton Maggs P">PH Bolton-Maggs</name></author><author><name sortKey="Perry, Dj" uniqKey="Perry D">DJ Perry</name></author><author><name sortKey="Chalmers, Ea" uniqKey="Chalmers E">EA Chalmers</name></author><author><name sortKey="Parapia, La" uniqKey="Parapia L">LA Parapia</name></author><author><name sortKey="Wilde, Jt" uniqKey="Wilde J">JT Wilde</name></author><author><name sortKey="Williams, Md" uniqKey="Williams M">MD Williams</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Quiroga, T" uniqKey="Quiroga T">T Quiroga</name></author><author><name sortKey="Goycoolea, M" uniqKey="Goycoolea M">M Goycoolea</name></author><author><name sortKey="Panes, O" uniqKey="Panes O">O Panes</name></author><author><name sortKey="Aranda, E" uniqKey="Aranda E">E Aranda</name></author><author><name sortKey="Martinez, C" uniqKey="Martinez C">C Martinez</name></author><author><name sortKey="Belmont, S" uniqKey="Belmont S">S Belmont</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Hayward, Cp" uniqKey="Hayward C">CP Hayward</name></author><author><name sortKey="Pai, M" uniqKey="Pai M">M Pai</name></author><author><name sortKey="Liu, Y" uniqKey="Liu Y">Y Liu</name></author><author><name sortKey="Moffat, Ka" uniqKey="Moffat K">KA Moffat</name></author><author><name sortKey="Seecharan, J" uniqKey="Seecharan J">J Seecharan</name></author><author><name sortKey="Webert, Ke" uniqKey="Webert K">KE Webert</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Nurden, At" uniqKey="Nurden A">AT Nurden</name></author><author><name sortKey="Freson, K" uniqKey="Freson K">K Freson</name></author><author><name sortKey="Seligsohn, U" uniqKey="Seligsohn U">U Seligsohn</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Heath, Ke" uniqKey="Heath K">KE Heath</name></author><author><name sortKey="Campos Barros, A" uniqKey="Campos Barros A">A Campos-Barros</name></author><author><name sortKey="Toren, A" uniqKey="Toren A">A Toren</name></author><author><name sortKey="Rozenfeld Granot, G" uniqKey="Rozenfeld Granot G">G Rozenfeld-Granot</name></author><author><name sortKey="Carlsson, Le" uniqKey="Carlsson L">LE Carlsson</name></author><author><name sortKey="Savige, J" uniqKey="Savige J">J Savige</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Pecci, A" uniqKey="Pecci A">A Pecci</name></author><author><name sortKey="Klersy, C" uniqKey="Klersy C">C Klersy</name></author><author><name sortKey="Gresele, P" uniqKey="Gresele P">P Gresele</name></author><author><name sortKey="Lee, Kj" uniqKey="Lee K">KJ Lee</name></author><author><name sortKey="De Rocco, D" uniqKey="De Rocco D">D De Rocco</name></author><author><name sortKey="Bozzi, V" uniqKey="Bozzi V">V Bozzi</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Albers, Ca" uniqKey="Albers C">CA Albers</name></author><author><name sortKey="Paul, Ds" uniqKey="Paul D">DS Paul</name></author><author><name sortKey="Schulze, H" uniqKey="Schulze H">H Schulze</name></author><author><name sortKey="Freson, K" uniqKey="Freson K">K Freson</name></author><author><name sortKey="Stephens, Jc" uniqKey="Stephens J">JC Stephens</name></author><author><name sortKey="Smethurst, Pa" uniqKey="Smethurst P">PA Smethurst</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Albers, Ca" uniqKey="Albers C">CA Albers</name></author><author><name sortKey="Cvejic, A" uniqKey="Cvejic A">A Cvejic</name></author><author><name sortKey="Favier, R" uniqKey="Favier R">R Favier</name></author><author><name sortKey="Bouwmans, Ee" uniqKey="Bouwmans E">EE Bouwmans</name></author><author><name sortKey="Alessi, Mc" uniqKey="Alessi M">MC Alessi</name></author><author><name sortKey="Bertone, P" uniqKey="Bertone P">P Bertone</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Rath, A" uniqKey="Rath A">A Rath</name></author><author><name sortKey="Olry, A" uniqKey="Olry A">A Olry</name></author><author><name sortKey="Dhombres, F" uniqKey="Dhombres F">F Dhombres</name></author><author><name sortKey="Brandt, Mm" uniqKey="Brandt M">MM Brandt</name></author><author><name sortKey="Urbero, B" uniqKey="Urbero B">B Urbero</name></author><author><name sortKey="Ayme, S" uniqKey="Ayme S">S Ayme</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Robinson, Pn" uniqKey="Robinson P">PN Robinson</name></author><author><name sortKey="Kohler, S" uniqKey="Kohler S">S Kohler</name></author><author><name sortKey="Bauer, S" uniqKey="Bauer S">S Bauer</name></author><author><name sortKey="Seelow, D" uniqKey="Seelow D">D Seelow</name></author><author><name sortKey="Horn, D" uniqKey="Horn D">D Horn</name></author><author><name sortKey="Mundlos, S" uniqKey="Mundlos S">S Mundlos</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kohler, S" uniqKey="Kohler S">S Kohler</name></author><author><name sortKey="Doelken, Sc" uniqKey="Doelken S">SC Doelken</name></author><author><name sortKey="Mungall, Cj" uniqKey="Mungall C">CJ Mungall</name></author><author><name sortKey="Bauer, S" uniqKey="Bauer S">S Bauer</name></author><author><name sortKey="Firth, Hv" uniqKey="Firth H">HV Firth</name></author><author><name sortKey="Bailleul Forestier, I" uniqKey="Bailleul Forestier I">I Bailleul-Forestier</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kohler, S" uniqKey="Kohler S">S Kohler</name></author><author><name sortKey="Doelken, Sc" uniqKey="Doelken S">SC Doelken</name></author><author><name sortKey="Rath, A" uniqKey="Rath A">A Rath</name></author><author><name sortKey="Ayme, S" uniqKey="Ayme S">S Ayme</name></author><author><name sortKey="Robinson, Pn" uniqKey="Robinson P">PN Robinson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Firth, Hv" uniqKey="Firth H">HV Firth</name></author><author><name sortKey="Wright, Cf" uniqKey="Wright C">CF Wright</name></author><author><name sortKey="Study, Ddd" uniqKey="Study D">DDD Study</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Tosetto, A" uniqKey="Tosetto A">A Tosetto</name></author><author><name sortKey="Rodeghiero, F" uniqKey="Rodeghiero F">F Rodeghiero</name></author><author><name sortKey="Castaman, G" uniqKey="Castaman G">G Castaman</name></author><author><name sortKey="Goodeve, A" uniqKey="Goodeve A">A Goodeve</name></author><author><name sortKey="Federici, Ab" uniqKey="Federici A">AB Federici</name></author><author><name sortKey="Batlle, J" uniqKey="Batlle J">J Batlle</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Resnik, P" uniqKey="Resnik P">P Resnik</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Reynolds, Aprg" uniqKey="Reynolds A">APRG Reynolds</name></author><author><name sortKey="De La Iglesia, B" uniqKey="De La Iglesia B">B de la Iglesia</name></author><author><name sortKey="Rayward Smith, Vj" uniqKey="Rayward Smith V">VJ Rayward-Smith</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Li, H" uniqKey="Li H">H Li</name></author><author><name sortKey="Durbin, R" uniqKey="Durbin R">R Durbin</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Depristo, Ma" uniqKey="Depristo M">MA DePristo</name></author><author><name sortKey="Banks, E" uniqKey="Banks E">E Banks</name></author><author><name sortKey="Poplin, R" uniqKey="Poplin R">R Poplin</name></author><author><name sortKey="Garimella, Kv" uniqKey="Garimella K">KV Garimella</name></author><author><name sortKey="Maguire, Jr" uniqKey="Maguire J">JR Maguire</name></author><author><name sortKey="Hartl, C" uniqKey="Hartl C">C Hartl</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jun, G" uniqKey="Jun G">G Jun</name></author><author><name sortKey="Flickinger, M" uniqKey="Flickinger M">M Flickinger</name></author><author><name sortKey="Hetrick, Kn" uniqKey="Hetrick K">KN Hetrick</name></author><author><name sortKey="Romm, Jm" uniqKey="Romm J">JM Romm</name></author><author><name sortKey="Doheny, Kf" uniqKey="Doheny K">KF Doheny</name></author><author><name sortKey="Abecasis, Gr" uniqKey="Abecasis G">GR Abecasis</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cingolani, P" uniqKey="Cingolani P">P Cingolani</name></author><author><name sortKey="Platts, A" uniqKey="Platts A">A Platts</name></author><author><name sortKey="Le Wang, L" uniqKey="Le Wang L">L Le Wang</name></author><author><name sortKey="Coon, M" uniqKey="Coon M">M Coon</name></author><author><name sortKey="Nguyen, T" uniqKey="Nguyen T">T Nguyen</name></author><author><name sortKey="Wang, L" uniqKey="Wang L">L Wang</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Kiddle, G" uniqKey="Kiddle G">G Kiddle</name></author><author><name sortKey="Poudel, P" uniqKey="Poudel P">P Poudel</name></author><author><name sortKey="Bray, P" uniqKey="Bray P">P Bray</name></author><author><name sortKey="Van Geet, C" uniqKey="Van Geet C">C Van Geet</name></author><author><name sortKey="Goodeve, A" uniqKey="Goodeve A">A Goodeve</name></author><author><name sortKey="Kunicki, T" uniqKey="Kunicki T">T Kunicki</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Matthijs, Gam" uniqKey="Matthijs G">GAM Matthijs</name></author><author><name sortKey="Bauer, P" uniqKey="Bauer P">P Bauer</name></author><author><name sortKey="Corveleyn, A" uniqKey="Corveleyn A">A Corveleyn</name></author><author><name sortKey="Eck, S" uniqKey="Eck S">S Eck</name></author><author><name sortKey="Feenstra, I" uniqKey="Feenstra I">I Feenstra</name></author><author><name sortKey="Race, V" uniqKey="Race V">V Race</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Dawood, Bb" uniqKey="Dawood B">BB Dawood</name></author><author><name sortKey="Lowe, Gc" uniqKey="Lowe G">GC Lowe</name></author><author><name sortKey="Lordkipanidze, M" uniqKey="Lordkipanidze M">M Lordkipanidze</name></author><author><name sortKey="Bem, D" uniqKey="Bem D">D Bem</name></author><author><name sortKey="Daly, Me" uniqKey="Daly M">ME Daly</name></author><author><name sortKey="Makris, M" uniqKey="Makris M">M Makris</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Goubau, C" uniqKey="Goubau C">C Goubau</name></author><author><name sortKey="Buyse, Gm" uniqKey="Buyse G">GM Buyse</name></author><author><name sortKey="Van Geet, C" uniqKey="Van Geet C">C Van Geet</name></author><author><name sortKey="Freson, K" uniqKey="Freson K">K Freson</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kunishima, S" uniqKey="Kunishima S">S Kunishima</name></author><author><name sortKey="Okuno, Y" uniqKey="Okuno Y">Y Okuno</name></author><author><name sortKey="Yoshida, K" uniqKey="Yoshida K">K Yoshida</name></author><author><name sortKey="Shiraishi, Y" uniqKey="Shiraishi Y">Y Shiraishi</name></author><author><name sortKey="Sanada, M" uniqKey="Sanada M">M Sanada</name></author><author><name sortKey="Muramatsu, H" uniqKey="Muramatsu H">H Muramatsu</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gueguen, P" uniqKey="Gueguen P">P Gueguen</name></author><author><name sortKey="Rouault, K" uniqKey="Rouault K">K Rouault</name></author><author><name sortKey="Chen, Jm" uniqKey="Chen J">JM Chen</name></author><author><name sortKey="Raguenes, O" uniqKey="Raguenes O">O Raguenes</name></author><author><name sortKey="Fichou, Y" uniqKey="Fichou Y">Y Fichou</name></author><author><name sortKey="Hardy, E" uniqKey="Hardy E">E Hardy</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Noris, P" uniqKey="Noris P">P Noris</name></author><author><name sortKey="Klersy, C" uniqKey="Klersy C">C Klersy</name></author><author><name sortKey="Gresele, P" uniqKey="Gresele P">P Gresele</name></author><author><name sortKey="Giona, F" uniqKey="Giona F">F Giona</name></author><author><name sortKey="Giordano, P" uniqKey="Giordano P">P Giordano</name></author><author><name sortKey="Minuz, P" uniqKey="Minuz P">P Minuz</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="James, Pd" uniqKey="James P">PD James</name></author><author><name sortKey="Notley, C" uniqKey="Notley C">C Notley</name></author><author><name sortKey="Hegadorn, C" uniqKey="Hegadorn C">C Hegadorn</name></author><author><name sortKey="Leggo, J" uniqKey="Leggo J">J Leggo</name></author><author><name sortKey="Tuttle, A" uniqKey="Tuttle A">A Tuttle</name></author><author><name sortKey="Tinlin, S" uniqKey="Tinlin S">S Tinlin</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Genome Med</journal-id><journal-id journal-id-type="iso-abbrev">Genome Med</journal-id><journal-title-group><journal-title>Genome Medicine</journal-title></journal-title-group><issn pub-type="epub">1756-994X</issn><publisher><publisher-name>BioMed Central</publisher-name><publisher-loc>London</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25949529</article-id><article-id pub-id-type="pmc">4422517</article-id><article-id pub-id-type="publisher-id">151</article-id><article-id pub-id-type="doi">10.1186/s13073-015-0151-5</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research</subject></subj-group></article-categories><title-group><article-title>Human phenotype ontology annotation and cluster analysis to unravel genetic defects in 707 cases with unexplained bleeding and platelet disorders</article-title></title-group><contrib-group><contrib contrib-type="author" equal-contrib="yes"><name><surname>Westbury</surname><given-names>Sarah K</given-names></name><address><email>sarah.westbury@bristol.ac.uk</email></address><xref ref-type="aff" rid="Aff1"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Turro</surname><given-names>Ernest</given-names></name><address><email>et341@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref><xref ref-type="aff" rid="Aff8"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Greene</surname><given-names>Daniel</given-names></name><address><email>dg333@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref><xref ref-type="aff" rid="Aff8"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Lentaigne</surname><given-names>Claire</given-names></name><address><email>c.lentaigne@imperial.ac.uk</email></address><xref ref-type="aff" rid="Aff4"></xref><xref ref-type="aff" rid="Aff5"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Kelly</surname><given-names>Anne M</given-names></name><address><email>amk68@medschl.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Bariana</surname><given-names>Tadbir K</given-names></name><address><email>tadbir.bariana@nhs.net</email></address><xref ref-type="aff" rid="Aff6"></xref><xref ref-type="aff" rid="Aff7"></xref></contrib><contrib contrib-type="author"><name><surname>Simeoni</surname><given-names>Ilenia</given-names></name><address><email>is250@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Pillois</surname><given-names>Xavier</given-names></name><address><email>xavier.pillois@chu-bordeaux.fr</email></address><xref ref-type="aff" rid="Aff9"></xref></contrib><contrib contrib-type="author"><name><surname>Attwood</surname><given-names>Antony</given-names></name><address><email>ta275@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Austin</surname><given-names>Steve</given-names></name><address><email>steve.austin@nhs.net</email></address><xref ref-type="aff" rid="Aff10"></xref></contrib><contrib contrib-type="author"><name><surname>Jansen</surname><given-names>Sjoert BG</given-names></name><address><email>sj391@medschl.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Bakchoul</surname><given-names>Tamam</given-names></name><address><email>tamam.bakchoul@uni-greifswald.de</email></address><xref ref-type="aff" rid="Aff11"></xref></contrib><contrib contrib-type="author"><name><surname>Crisp-Hihn</surname><given-names>Abi</given-names></name><address><email>ac602@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Erber</surname><given-names>Wendy N</given-names></name><address><email>wendy.erber@uwa.edu.au</email></address><xref ref-type="aff" rid="Aff12"></xref></contrib><contrib contrib-type="author"><name><surname>Favier</surname><given-names>Rémi</given-names></name><address><email>remi.favier@trs.aphp.fr</email></address><xref ref-type="aff" rid="Aff13"></xref></contrib><contrib contrib-type="author"><name><surname>Foad</surname><given-names>Nicola</given-names></name><address><email>nsj23@medschl.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Gattens</surname><given-names>Michael</given-names></name><address><email>michael.gattens@addenbrookes.nhs.uk</email></address><xref ref-type="aff" rid="Aff14"></xref></contrib><contrib contrib-type="author"><name><surname>Jolley</surname><given-names>Jennifer D</given-names></name><address><email>jdm55@medschl.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Liesner</surname><given-names>Ri</given-names></name><address><email>ri.liesner@gosh.nhs.uk</email></address><xref ref-type="aff" rid="Aff15"></xref></contrib><contrib contrib-type="author"><name><surname>Meacham</surname><given-names>Stuart</given-names></name><address><email>sm766@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Millar</surname><given-names>Carolyn M</given-names></name><address><email>c.millar@imperial.ac.uk</email></address><xref ref-type="aff" rid="Aff4"></xref><xref ref-type="aff" rid="Aff5"></xref></contrib><contrib contrib-type="author"><name><surname>Nurden</surname><given-names>Alan T</given-names></name><address><email>nurdenat@gmail.com</email></address><xref ref-type="aff" rid="Aff9"></xref></contrib><contrib contrib-type="author"><name><surname>Peerlinck</surname><given-names>Kathelijne</given-names></name><address><email>kathelijne.peerlinck@uzleuven.be</email></address><xref ref-type="aff" rid="Aff16"></xref></contrib><contrib contrib-type="author"><name><surname>Perry</surname><given-names>David J</given-names></name><address><email>david.perry@addenbrookes.nhs.uk</email></address><xref ref-type="aff" rid="Aff14"></xref></contrib><contrib contrib-type="author"><name><surname>Poudel</surname><given-names>Pawan</given-names></name><address><email>pp376@medschl.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Schulman</surname><given-names>Sol</given-names></name><address><email>sol.schulman@gmail.com</email></address><xref ref-type="aff" rid="Aff17"></xref></contrib><contrib contrib-type="author"><name><surname>Schulze</surname><given-names>Harald</given-names></name><address><email>harald.schulze@uni-wuerzburg.de</email></address><xref ref-type="aff" rid="Aff18"></xref></contrib><contrib contrib-type="author"><name><surname>Stephens</surname><given-names>Jonathan C</given-names></name><address><email>js595@medschl.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref></contrib><contrib contrib-type="author"><name><surname>Furie</surname><given-names>Bruce</given-names></name><address><email>bfurie@bidmc.harvard.edu</email></address><xref ref-type="aff" rid="Aff17"></xref></contrib><contrib contrib-type="author"><name><surname>Robinson</surname><given-names>Peter N</given-names></name><address><email>peter.robinson@charite.de</email></address><xref ref-type="aff" rid="Aff19"></xref><xref ref-type="aff" rid="Aff20"></xref><xref ref-type="aff" rid="Aff21"></xref></contrib><contrib contrib-type="author"><name><surname>van Geet</surname><given-names>Chris</given-names></name><address><email>christel.vangeet@med.kuleuven.be</email></address><xref ref-type="aff" rid="Aff16"></xref></contrib><contrib contrib-type="author"><name><surname>Rendon</surname><given-names>Augusto</given-names></name><address><email>ar506@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref><xref ref-type="aff" rid="Aff8"></xref></contrib><contrib contrib-type="author"><name><surname>Gomez</surname><given-names>Keith</given-names></name><address><email>k.gomez@ucl.ac.uk</email></address><xref ref-type="aff" rid="Aff7"></xref></contrib><contrib contrib-type="author"><name><surname>Laffan</surname><given-names>Michael A</given-names></name><address><email>m.laffan@imperial.ac.uk</email></address><xref ref-type="aff" rid="Aff4"></xref></contrib><contrib contrib-type="author"><name><surname>Lambert</surname><given-names>Michele P</given-names></name><address><email>lambertm@email.chop.edu</email></address><xref ref-type="aff" rid="Aff22"></xref><xref ref-type="aff" rid="Aff23"></xref></contrib><contrib contrib-type="author"><name><surname>Nurden</surname><given-names>Paquita</given-names></name><address><email>paquita.nurden@u-bordeaux.fr</email></address><xref ref-type="aff" rid="Aff9"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Ouwehand</surname><given-names>Willem H</given-names></name><address><email>who1000@cam.ac.uk</email></address><xref ref-type="aff" rid="Aff2"></xref><xref ref-type="aff" rid="Aff3"></xref><xref ref-type="aff" rid="Aff24"></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Richardson</surname><given-names>Sylvia</given-names></name><address><email>sylvia.richardson@mrc-bsu.cam.ac.uk</email></address><xref ref-type="aff" rid="Aff8"></xref></contrib><contrib contrib-type="author" corresp="yes" equal-contrib="yes"><name><surname>Mumford</surname><given-names>Andrew D</given-names></name><address><email>a.mumford@bristol.ac.uk</email></address><xref ref-type="aff" rid="Aff25"></xref></contrib><contrib contrib-type="author" corresp="yes" equal-contrib="yes"><name><surname>Freson</surname><given-names>Kathleen</given-names></name><address><email>kathleen.freson@med.kuleuven.be</email></address><xref ref-type="aff" rid="Aff16"></xref></contrib><contrib contrib-type="author"><collab>on behalf of the BRIDGE-BPD Consortium</collab></contrib><aff id="Aff1"><label></label>School of Clinical Sciences, University of Bristol, Bristol, UK</aff><aff id="Aff2"><label></label>Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK</aff><aff id="Aff3"><label></label>NHS Blood and Transplant, Cambridge Biomedical Campus, Cambridge, UK</aff><aff id="Aff4"><label></label>Centre for Haematology, Hammersmith Campus, Imperial College Academic Health Sciences Centre, Imperial College London, London, UK</aff><aff id="Aff5"><label></label>Imperial College Healthcare NHS Trust, DuCane Road, London, UK</aff><aff id="Aff6"><label></label>Department of Haematology, University College London Cancer Institute, London, UK</aff><aff id="Aff7"><label></label>The Katharine Dormandy Haemophilia Centre and Thrombosis Unit, Royal Free London NHS Foundation Trust, London, UK</aff><aff id="Aff8"><label></label>Medical Research Council Biostatistics Unit, Cambridge Biomedical Campus, Cambridge, UK</aff><aff id="Aff9"><label></label>Institut Hospitalo-Universitaire LIRYC, PTIB, Hôpital Xavier Arnozan, Pessac, France</aff><aff id="Aff10"><label></label>Department of Haematology, Guys and St Thomas’ NHS Foundation Trust, London, UK</aff><aff id="Aff11"><label></label>Institut für Immunologie und Transfusionsmedizin Universitätsmedizin Ernst-Moritz-Arndt Universität, Greifswald, Germany</aff><aff id="Aff12"><label></label>Pathology and Laboratory Medicine, University of Western Australia, Crawley, WA Australia</aff><aff id="Aff13"><label></label>Haematological Laboratory, Trousseau Children’s Hospital and INsermU1009, Paris, France</aff><aff id="Aff14"><label></label>Department of Haematology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, UK</aff><aff id="Aff15"><label></label>Department of Haematology, Great Ormond Street Hospital for Children NHS Trust, London, UK</aff><aff id="Aff16"><label></label>Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium</aff><aff id="Aff17"><label></label>Beth Israel Deaconess Medical Centre, Harvard Medical School, Boston, USA</aff><aff id="Aff18"><label></label>Lehrstuhl für Experimentelle Biomedizin, Universitätsklinikum Würzburg, Würzburg, Germany</aff><aff id="Aff19"><label></label>Institut für Medizinische Genetik und Humangenetik, Charité Universitätsmedizin, Berlin, Germany</aff><aff id="Aff20"><label></label>Max Planck Institute for Molecular Genetics, Berlin, Germany</aff><aff id="Aff21"><label></label>Institute for Bioinformatics, Department of Mathematics and Computer Science Freie Universität, Berlin, Germany</aff><aff id="Aff22"><label></label>Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, USA</aff><aff id="Aff23"><label></label>Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA</aff><aff id="Aff24"><label></label>Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK</aff><aff id="Aff25"><label></label>School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK</aff></contrib-group><pub-date pub-type="epub"><day>9</day><month>4</month><year>2015</year></pub-date><pub-date pub-type="pmc-release"><day>9</day><month>4</month><year>2015</year></pub-date><pub-date pub-type="collection"><year>2015</year></pub-date><volume>7</volume><issue>1</issue><elocation-id>36</elocation-id><history><date date-type="received"><day>24</day><month>11</month><year>2014</year></date><date date-type="accepted"><day>5</day><month>3</month><year>2015</year></date></history><permissions><copyright-statement>© Westbury et al.; licensee BioMed Central. 2015</copyright-statement><license license-type="open-access"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0">http://creativecommons.org/licenses/by/4.0</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/publicdomain/zero/1.0/">http://creativecommons.org/publicdomain/zero/1.0/</ext-link>) applies to the data made available in this article, unless otherwise stated.</license-p></license></permissions><abstract id="Abs1"><sec><title>Background</title><p>Heritable bleeding and platelet disorders (BPD) are heterogeneous and frequently have an unknown genetic basis. The BRIDGE-BPD study aims to discover new causal genes for BPD by high throughput sequencing using cluster analyses based on improved and standardised deep, multi-system phenotyping of cases.</p></sec><sec><title>Methods</title><p>We report a new approach in which the clinical and laboratory characteristics of BPD cases are annotated with adapted Human Phenotype Ontology (HPO) terms. Cluster analyses are then used to characterise groups of cases with similar HPO terms and variants in the same genes.</p></sec><sec><title>Results</title><p>We show that 60% of index cases with heritable BPD enrolled at 10 European or US centres were annotated with HPO terms indicating abnormalities in organ systems other than blood or blood-forming tissues, particularly the nervous system. Cases within pedigrees clustered closely together on the bases of their HPO-coded phenotypes, as did cases sharing several clinically suspected syndromic disorders. Cases subsequently found to harbour variants in <italic>ACTN1</italic> also clustered closely, even though diagnosis of this recently described disorder was not possible using only the clinical and laboratory data available to the enrolling clinician.</p></sec><sec><title>Conclusions</title><p>These findings validate our novel HPO-based phenotype clustering methodology for known BPD, thus providing a new discovery tool for BPD of unknown genetic basis. This approach will also be relevant for other rare diseases with significant genetic heterogeneity.</p></sec><sec><title>Electronic supplementary material</title><p>The online version of this article (doi:10.1186/s13073-015-0151-5) contains supplementary material, which is available to authorized users.</p></sec></abstract><custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name><meta-value>© The Author(s) 2015</meta-value></custom-meta></custom-meta-group></article-meta></front><body><sec id="Sec1" sec-type="introduction"><title>Background</title><p>Bleeding and platelet disorders (BPD) are a heterogeneous group of rare diseases caused by abnormalities of coagulation factors, platelets or blood vessel walls. Although in most cases the major clinical feature is abnormal bleeding, BPD are frequently associated with phenotypes in other organ systems, particularly the immune system (for example, Wiskott-Aldrich syndrome (WAS, ORPHA906)), skeleton (for example, Thrombocytopenia with Absent Radius syndrome (ORPHA3320)), eye (for example, Hermansky-Pudlak Syndrome (HPS, ORPHA79430)) and kidney (for example, <italic>MYH9</italic>-related disorder (MYH9-RD, ORPHA182050)). BPD may be inherited as autosomal recessive, autosomal dominant, X-linked, or complex traits. Collectively, BPD represent a significant diagnostic and management challenge to health care systems [<xref ref-type="bibr" rid="CR1">1</xref>].</p><p>Diagnosis of BPD currently requires clinical evaluation, then tests such as coagulation factor activity and platelet function assays [<xref ref-type="bibr" rid="CR2">2</xref>,<xref ref-type="bibr" rid="CR3">3</xref>]. However, for mild BPD, this enables diagnosis to the level of a defective coagulation factor or a platelet pathway in only 40% to 60% of cases [<xref ref-type="bibr" rid="CR4">4</xref>,<xref ref-type="bibr" rid="CR5">5</xref>]. The proportion of cases with BPD that receive genetic diagnosis is even lower [<xref ref-type="bibr" rid="CR6">6</xref>], partly because the genetic basis of most BPD remains unknown, particularly for prevalent sub-groups such as platelet secretion defects [<xref ref-type="bibr" rid="CR5">5</xref>]. Even for BPD with a known genetic basis, diagnosis may not be possible if phenotype tests are insufficiently specific to point towards relevant genes. Moreover, many BPD with causal variants in the same gene are clinically heterogeneous, as illustrated by MYH9-RD in which macrothrombocytopenia is a consistent feature, but neutrophil Döhle-like inclusions, renal impairment, deafness and cataracts are variable [<xref ref-type="bibr" rid="CR7">7</xref>,<xref ref-type="bibr" rid="CR8">8</xref>]. High throughput sequencing (HTS) has the potential to circumvent these limitations by providing a diagnostic tool for genetic diagnosis and by enabling gene discovery to increase the repertoire of disorders for which genetic diagnosis is possible.</p><p>Analysis of large case collections recruited through consortia of investigators and technologies such as HTS assist discovery of rare BPD genes [<xref ref-type="bibr" rid="CR9">9</xref>,<xref ref-type="bibr" rid="CR10">10</xref>]. However, gene discovery additionally requires analysis of shared data through systematic phenotype coding to identify similarities between unrelated cases. Phenotype coding also facilitates creation of clinical registries, genotype-phenotype databases and biobanks. Examples of coding systems include the World Health Organization International Classification of Diseases (ICD) [<xref ref-type="bibr" rid="CR11">11</xref>], which provides a post-diagnosis classification of disease organized by organ system that is unsuitable for coding rare genetic diseases particularly those that affect multiple organs. The International Health Terminology Standards Development Organisation Systematized Nomenclature of Medicine Clinical Terminology (SNOMED-CT) [<xref ref-type="bibr" rid="CR12">12</xref>] is an alternative system, but is not optimised for laboratory results and has greater emphasis on specific diseases rather than phenotypes. Platforms such as Online Mendelian Inheritance in Man (OMIM) [<xref ref-type="bibr" rid="CR13">13</xref>] and Orphanet [<xref ref-type="bibr" rid="CR14">14</xref>] provide descriptions of known genetic disorders but do not utilise systematic phenotype terms. The Bleeding History Phenotype Ontology [<xref ref-type="bibr" rid="CR15">15</xref>] is a hierarchical ontology system that may enable phenotypic similarities between some cases with BPD to be resolved. However, this ontology has a limited repertoire of phenotypic terms outside those immediately pertinent to bleeding. Moreover, there are no terms for the results of laboratory tests such as light transmission aggregation or dense granule secretion. These are essential for the accurate phenotypic description of platelet function disorders, which are the largest single group of BPD of unknown genetic basis.</p><p>The Human Phenotype Ontology (HPO) project is an international initiative to support the phenotypic annotation of genetic disorders available under an open-source licence [<xref ref-type="bibr" rid="CR16">16</xref>]. The HPO version 887 contains a set of 10,371 terms that describe abnormalities of human phenotype and 13,556 relations between the HPO terms organised hierarchically through <italic>is-a</italic> relations [<xref ref-type="bibr" rid="CR17">17</xref>]. For example, ‘thrombocytopenia is-a abnormal platelet count is-a abnormality of thrombocytes’. This enables phenotypes to be described using a standardised and controlled vocabulary with greater detail and flexibility than other coding systems. The HPO has previously been applied to diseases using phenotypic terms from Orphanet and OMIM [<xref ref-type="bibr" rid="CR18">18</xref>] but it has not previously been used to describe and compare phenotype data from individual cases. Systematic comparison of phenotype data from individual cases assists gene discovery because clusters of cases with similar phenotypes are likely to share defects in the same gene or interacting set of genes [<xref ref-type="bibr" rid="CR19">19</xref>].</p><p>The BRIDGE-BPD study [<xref ref-type="bibr" rid="CR20">20</xref>] is a multicentre, observational consortium study that aims to identify causal gene defects in cases with BPD of unknown aetiology by deep multi-system phenotyping and HTS. We report the results of Stage 1 of the BRIDGE-BPD study in which we develop new HPO terminology to facilitate annotation of BPD phenotypes in 707 BPD cases recruited at 10 European and US centres. We show for the first time how HPO annotation can be used to describe the phenotypes of individual cases within a large rare disease collection and how a novel statistical clustering approach using HPO data guides gene discovery.</p></sec><sec id="Sec2" sec-type="materials|methods"><title>Methods</title><sec id="Sec3"><title>Study overview and enrolment criteria</title><p>The target population for the BRIDGE-BPD study comprises children and adults with disorders of platelet number, volume, morphology or function or with pathological bleeding that cannot be explained by standard laboratory tests. To ensure enrolment of cases with a high likelihood of a genetic BPD, the inclusion criteria require features such as a BPD from an early age, a BPD that is part of a syndromic disorder or a family history of a BPD. Cases with an acquired BPD (Table <xref rid="Tab1" ref-type="table">1</xref>) or a known genetic BPD are excluded unless they display bleeding or laboratory features that cannot be explained by this diagnosis alone. For example, a case with haemophilia A and unexplained thrombocytopenia is considered eligible on the basis of thrombocytopenia. Most cases had already been investigated within research and specialist clinical diagnostic facilities, maximising exclusion of acquired or known genetic BPD. The BRIDGE-BPD study is approved by a UK Research Ethics Committee (Cambridgeshire 1 Research Ethics Committee 10/H0304/66) and appropriate national ethics authorities for non-UK enrolment centres (Additional file <xref rid="MOESM1" ref-type="media">1</xref>). All study procedures were performed after the participants provided informed written consent and were in accordance with the Declaration of Helsinki. Sequence data for cases who provided consent for public access have been deposited at the European Genome-Phenome Archive (EGAS00001001172).<table-wrap id="Tab1"><label>Table 1</label><caption><p><bold>Eligibility criteria for BRIDGE bleeding and platelet disorders study</bold></p></caption><table frame="hsides" rules="groups"><thead><tr valign="top"><th><bold>Inclusion criteria</bold></th><th><bold>Exclusion criteria</bold></th></tr></thead><tbody><tr valign="top"><td>Platelet count less than 100 × 10<sup>9</sup>/L or greater than 400 × 10<sup>9</sup>/L, or</td><td>Acquired bleeding or platelet disorders, including any of the following:</td></tr><tr valign="top"><td>Mean platelet volume less than 6 fL or greater than 12 fL, or</td><td>Use of any medication known to affect platelet function or cause bleeding</td></tr><tr valign="top"><td>Reproducible abnormal platelet function test results, or</td><td>Immune thrombocytopenia</td></tr><tr valign="top"><td>Abnormal platelet morphology by light or electron microscopy, or</td><td>HIV infection</td></tr><tr valign="top"><td>Pathological bleeding of unknown aetiology, and</td><td>Malignancies, particularly those affecting haemopoiesis</td></tr><tr valign="top"><td>Considered by referring clinician to be of genetic aetiology</td><td>Bone marrow aplasia</td></tr><tr valign="top"><td></td><td>Thrombotic thrombocytopenic purpura/ Haemolytic-uremic syndrome</td></tr><tr valign="top"><td></td><td>Acute viral infection</td></tr><tr valign="top"><td></td><td>Splenomegaly</td></tr><tr valign="top"><td></td><td>Uraemia or hepatic failure</td></tr></tbody></table></table-wrap></p></sec><sec id="Sec4"><title>Recruitment of cases and collection of phenotype data</title><p>Index cases and pedigree members were identified by screening clinic lists, case notes and local registries. Potential participants were checked for eligibility and were invited to give informed written consent. Demographic and clinical data, laboratory test results and pedigree relationships were recorded on a case report form.</p></sec><sec id="Sec5"><title>BRIDGE-BPD database</title><p>Pseudonymised demographic and clinical data were transferred to electronic data capture pages usually as quantitative or categorical variables but with a minority as free text to maintain detail. Bleeding symptoms were recorded as numerical severity scores for the 12 major symptoms within the MCMDM-1 VWD Bleeding Assessment Tool [<xref ref-type="bibr" rid="CR21">21</xref>], or as the terms ‘yes’ or ‘no’ for each symptom (Additional file <xref rid="MOESM2" ref-type="media">2</xref>). Laboratory test results were recorded as quantitative variables, except for tests such as platelet light transmission aggregation (LTA) and ATP secretion, which were recorded as ‘normal’ or ‘abnormal’ according to the interpretation of the enrolling clinician. Platelet morphology determined by light or electron microscopy was recorded as free text.</p></sec><sec id="Sec6"><title>Development of HPO terminology for BPD</title><p>In order to ensure accurate annotation of the bleeding and platelet phenotype, 80 terms and associated <italic>is-a</italic> relationships were added to HPO [<xref ref-type="bibr" rid="CR17">17</xref>], in parallel with development of hpoPlot, a new free software tool that summarises HPO codes of a set of cases, released on the Comprehensive R Archive Network [<xref ref-type="bibr" rid="CR22">22</xref>]. The HPO modifications were predominantly within the abnormality of blood and blood-forming tissue leading class and its constituent classes ‘abnormality of thrombocytes’, ‘abnormal bleeding’, ‘abnormality of coagulation’ and ‘abnormal thrombosis’. Some terms required creation of a new ‘abnormal platelet morphology’ class (Additional file <xref rid="MOESM3" ref-type="media">3</xref>). Many terms within ‘abnormality of blood and blood-forming tissue’ overlap with other system-specific HPO leading classes, particularly ‘abnormality of the immune system’ (Additional file <xref rid="MOESM4" ref-type="media">4</xref>).</p></sec><sec id="Sec7"><title>Automated and suggested HPO terms</title><p>To improve the reliability and efficiency of HPO coding, cases were annotated with relevant terms automatically for abnormal bleeding symptoms or abnormal categorical laboratory test results and for some numerical laboratory test results, if outside a gender-specific reference interval. For the remaining laboratory test results, suggested HPO terms were presented for manual confirmation. This was necessary to prevent inappropriate coding if a laboratory test result was abnormal because of a co-morbidity or if the reference interval was not applicable because the case was a child or pregnant. HPO terms for other clinical or laboratory abnormalities could be selected through expansion of parent HPO terms or by searching for a specific HPO term.</p></sec><sec id="Sec8"><title>Measuring similarity and clustering strength</title><p>We define the relative information content (IC) of HPO terms on the basis of their rarity within the BPD case collection. Measures of phenotypic similarity between a pair of individuals, represented as two sets of HPO terms, are then determined by the overall rareness of the pair’s shared terms [<xref ref-type="bibr" rid="CR23">23</xref>]. The IC of term <italic>t</italic> is given by<disp-formula id="Equa"><alternatives><tex-math id="M1">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \mathrm{I}\mathrm{C}(t)=- \log {p}_t, $$\end{document}</tex-math><mml:math id="M2"><mml:mi mathvariant="normal">I</mml:mi><mml:mi mathvariant="normal">C</mml:mi><mml:mfenced close=")" open="("><mml:mi>t</mml:mi></mml:mfenced><mml:mo>=</mml:mo><mml:mo>−</mml:mo><mml:mo>log</mml:mo><mml:msub><mml:mi>p</mml:mi><mml:mi>t</mml:mi></mml:msub><mml:mtext>,</mml:mtext></mml:math><graphic xlink:href="13073_2015_151_Article_Equa.gif" position="anchor"></graphic></alternatives></disp-formula>where <italic>p</italic><sub><italic>t</italic></sub> is the frequency of the term in the BPD collection. The similarity between two terms, <italic>s</italic> and <italic>t</italic>, is defined as<disp-formula id="Equb"><alternatives><tex-math id="M3">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \mathrm{s}\mathrm{i}\mathrm{m}\left(s,t\right)=\underset{v\ \in anc(s){\displaystyle \cap }anc(t)}{ \max }IC(v), $$\end{document}</tex-math><mml:math id="M4"><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">m</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:mi>s</mml:mi><mml:mo>,</mml:mo><mml:mi>t</mml:mi></mml:mrow></mml:mfenced><mml:mo>=</mml:mo><mml:munder><mml:mo>max</mml:mo><mml:mrow><mml:mi>v</mml:mi><mml:mspace width="0.25em"></mml:mspace><mml:mo>∈</mml:mo><mml:mi>a</mml:mi><mml:mi>n</mml:mi><mml:mi>c</mml:mi><mml:mfenced close=")" open="("><mml:mi>s</mml:mi></mml:mfenced><mml:mstyle displaystyle="true"><mml:mo>∩</mml:mo></mml:mstyle><mml:mi>a</mml:mi><mml:mi>n</mml:mi><mml:mi>c</mml:mi><mml:mfenced close=")" open="("><mml:mi>t</mml:mi></mml:mfenced></mml:mrow></mml:munder><mml:mi>I</mml:mi><mml:mi>C</mml:mi><mml:mfenced close=")" open="("><mml:mi>v</mml:mi></mml:mfenced><mml:mtext>,</mml:mtext></mml:math><graphic xlink:href="13073_2015_151_Article_Equb.gif" position="anchor"></graphic></alternatives></disp-formula>where anc(<italic>x</italic>) denotes the ancestor terms of <italic>x</italic>, that is, the terms {<italic>y</italic>|<italic>x</italic> ‘<italic>is</italic> - <italic>a</italic>’ <italic>y</italic>}. The similarity between two cases represented as two sets of terms, <italic>D</italic><sub><italic>a</italic></sub> and <italic>D</italic><sub><italic>b</italic></sub>, is given by<disp-formula id="Equc"><alternatives><tex-math id="M5">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \mathrm{s}\mathrm{i}\mathrm{m}\left({D}_a,{D}_b\right)=\frac{1}{2\left|{D}_a\right|}{\displaystyle \sum_{s\in {D}_a}}\underset{t\in {D}_b}{ \max}\mathrm{s}\mathrm{i}\mathrm{m}\left(s,t\right)+\frac{1}{2\left|{D}_b\right|}{\displaystyle \sum_{s\in {D}_b}}\underset{t\in {D}_a}{ \max}\mathrm{s}\mathrm{i}\mathrm{m}\left(s,t\right). $$\end{document}</tex-math><mml:math id="M6"><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">m</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:msub><mml:mi>D</mml:mi><mml:mi>a</mml:mi></mml:msub><mml:mo>,</mml:mo><mml:msub><mml:mi>D</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:mrow></mml:mfenced><mml:mo>=</mml:mo><mml:mfrac><mml:mn>1</mml:mn><mml:mrow><mml:mn>2</mml:mn><mml:mfenced close="|" open="|"><mml:msub><mml:mi>D</mml:mi><mml:mi>a</mml:mi></mml:msub></mml:mfenced></mml:mrow></mml:mfrac><mml:mstyle displaystyle="true"><mml:munder><mml:mo stretchy="true">∑</mml:mo><mml:mrow><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:msub><mml:mi>D</mml:mi><mml:mi>a</mml:mi></mml:msub></mml:mrow></mml:munder></mml:mstyle><mml:munder><mml:mo>max</mml:mo><mml:mrow><mml:mi>t</mml:mi><mml:mo>∈</mml:mo><mml:msub><mml:mi>D</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:mrow></mml:munder><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">m</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:mi>s</mml:mi><mml:mo>,</mml:mo><mml:mi>t</mml:mi></mml:mrow></mml:mfenced><mml:mo>+</mml:mo><mml:mfrac><mml:mn>1</mml:mn><mml:mrow><mml:mn>2</mml:mn><mml:mfenced close="|" open="|"><mml:msub><mml:mi>D</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:mfenced></mml:mrow></mml:mfrac><mml:mstyle displaystyle="true"><mml:munder><mml:mo stretchy="true">∑</mml:mo><mml:mrow><mml:mi>s</mml:mi><mml:mo>∈</mml:mo><mml:msub><mml:mi>D</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:mrow></mml:munder></mml:mstyle><mml:munder><mml:mo>max</mml:mo><mml:mrow><mml:mi>t</mml:mi><mml:mo>∈</mml:mo><mml:msub><mml:mi>D</mml:mi><mml:mi>a</mml:mi></mml:msub></mml:mrow></mml:munder><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">m</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:mi>s</mml:mi><mml:mo>,</mml:mo><mml:mi>t</mml:mi></mml:mrow></mml:mfenced><mml:mtext>.</mml:mtext></mml:math><graphic xlink:href="13073_2015_151_Article_Equc.gif" position="anchor"></graphic></alternatives></disp-formula></p><p>This definition ensures symmetry of the similarity measure. A scale-independent measure of phenotypic dissimilarity was also computed between two cases <italic>a</italic> and <italic>b</italic> with respect to the rest of the collection:<disp-formula id="Equd"><alternatives><tex-math id="M7">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \mathrm{dist}\left(a,b\right)=\frac{1}{2}\ {\displaystyle \sum_{i\in \left\{a,b\right\}}}\ {\displaystyle \sum_{j\ \notin \left\{a,b\right\}}}{1}_{\mathrm{sim}\left({D}_i,\ {D}_j\right)\le \mathrm{s}\mathrm{i}\mathrm{m}\left({D}_a,{D}_b\right)}, $$\end{document}</tex-math><mml:math id="M8"><mml:mi mathvariant="normal">dist</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:mi>a</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:mfenced><mml:mo>=</mml:mo><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac><mml:mspace width="0.25em"></mml:mspace><mml:mstyle displaystyle="true"><mml:munder><mml:mo stretchy="true">∑</mml:mo><mml:mrow><mml:mi>i</mml:mi><mml:mo>∈</mml:mo><mml:mfenced close="}" open="{"><mml:mrow><mml:mi>a</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:mfenced></mml:mrow></mml:munder></mml:mstyle><mml:mspace width="0.25em"></mml:mspace><mml:mstyle displaystyle="true"><mml:munder><mml:mo stretchy="true">∑</mml:mo><mml:mrow><mml:mi>j</mml:mi><mml:mspace width="0.25em"></mml:mspace><mml:mo>∉</mml:mo><mml:mfenced close="}" open="{"><mml:mrow><mml:mi>a</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:mfenced></mml:mrow></mml:munder></mml:mstyle><mml:msub><mml:mn>1</mml:mn><mml:mrow><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">m</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:msub><mml:mi>D</mml:mi><mml:mi>i</mml:mi></mml:msub><mml:mo>,</mml:mo><mml:mspace width="0.25em"></mml:mspace><mml:msub><mml:mi>D</mml:mi><mml:mi>j</mml:mi></mml:msub></mml:mrow></mml:mfenced><mml:mo>≤</mml:mo><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">m</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:msub><mml:mi>D</mml:mi><mml:mi>a</mml:mi></mml:msub><mml:mo>,</mml:mo><mml:msub><mml:mi>D</mml:mi><mml:mi>b</mml:mi></mml:msub></mml:mrow></mml:mfenced></mml:mrow></mml:msub><mml:mtext>,</mml:mtext></mml:math><graphic xlink:href="13073_2015_151_Article_Equd.gif" position="anchor"></graphic></alternatives></disp-formula>where <italic>D</italic><sub><italic>a</italic></sub> is the set of HPO terms associated with case <italic>a</italic>. The rank distance among a set Z of more than two cases is given by the mean over all pairwise distances:<disp-formula id="Eque"><alternatives><tex-math id="M9">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \mathrm{dist}(Z)={\left(\begin{array}{c}\hfill \left|Z\right|\hfill \\ {}\hfill 2\hfill \end{array}\right)}^{-1}{\displaystyle \sum_{a,b\in Z,a\ne b}}\ \mathrm{dist}\left(a,b\right). $$\end{document}</tex-math><mml:math id="M10"><mml:mi mathvariant="normal">dist</mml:mi><mml:mfenced close=")" open="("><mml:mi>Z</mml:mi></mml:mfenced><mml:mo>=</mml:mo><mml:msup><mml:mfenced close=")" open="("><mml:mtable columnalign="center"><mml:mtr columnalign="center"><mml:mtd columnalign="center"><mml:mfenced close="|" open="|"><mml:mi>Z</mml:mi></mml:mfenced></mml:mtd></mml:mtr><mml:mtr columnalign="center"><mml:mtd columnalign="center"><mml:mn>2</mml:mn></mml:mtd></mml:mtr></mml:mtable></mml:mfenced><mml:mrow><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup><mml:mstyle displaystyle="true"><mml:munder><mml:mo stretchy="true">∑</mml:mo><mml:mrow><mml:mi>a</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi><mml:mo>∈</mml:mo><mml:mi>Z</mml:mi><mml:mo>,</mml:mo><mml:mi>a</mml:mi><mml:mo>≠</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:munder></mml:mstyle><mml:mspace width="0.25em"></mml:mspace><mml:mi mathvariant="normal">dist</mml:mi><mml:mfenced close=")" open="("><mml:mrow><mml:mi>a</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:mfenced><mml:mtext>.</mml:mtext></mml:math><graphic xlink:href="13073_2015_151_Article_Eque.gif" position="anchor"></graphic></alternatives></disp-formula></p><p>To evaluate the phenotypic similarity of a group of cases, Z, with respect to a containing collection, a one-tail Monte Carlo <italic>P</italic> value for testing whether the distance between cases in Z was less than what would be expected by chance in a similar size group was computed as:<disp-formula id="Equf"><alternatives><tex-math id="M11">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \frac{1}{\left|\mathcal{W}\right|}{\displaystyle \sum_{W\in \mathcal{W}}}{1}_{\mathrm{dist}(W)\le\ \mathrm{dist}(Z)} $$\end{document}</tex-math><mml:math id="M12"><mml:mfrac><mml:mn>1</mml:mn><mml:mfenced close="|" open="|"><mml:mi mathvariant="script">W</mml:mi></mml:mfenced></mml:mfrac><mml:mstyle displaystyle="true"><mml:munder><mml:mo stretchy="true">∑</mml:mo><mml:mrow><mml:mi>W</mml:mi><mml:mo>∈</mml:mo><mml:mi mathvariant="script">W</mml:mi></mml:mrow></mml:munder></mml:mstyle><mml:msub><mml:mn>1</mml:mn><mml:mrow><mml:mi mathvariant="normal">dist</mml:mi><mml:mfenced close=")" open="("><mml:mi>W</mml:mi></mml:mfenced><mml:mo>≤</mml:mo><mml:mspace width="0.25em"></mml:mspace><mml:mi mathvariant="normal">dist</mml:mi><mml:mfenced close=")" open="("><mml:mi>Z</mml:mi></mml:mfenced></mml:mrow></mml:msub></mml:math><graphic xlink:href="13073_2015_151_Article_Equf.gif" position="anchor"></graphic></alternatives></disp-formula>where <inline-formula id="IEq1"><alternatives><tex-math id="M13">\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$$ \mathcal{W} $$\end{document}</tex-math><mml:math id="M14"><mml:mi mathvariant="script">W</mml:mi></mml:math><inline-graphic xlink:href="13073_2015_151_Article_IEq1.gif"></inline-graphic></alternatives></inline-formula> is a set of 250,000 subsets of |<italic>Z</italic>| index cases drawn at random from the entire collection. Although these <italic>P</italic> values are marginally uniform under the null, there may be a small correlation between them because the same data are reused in each set of permutations. However, if |<italic>Z</italic>| is small relative to the total sample size, the correlation should be negligible.</p></sec><sec id="Sec9"><title>HPO-based clustering of cases</title><p>Unsupervised clustering of unrelated BPD cases was performed by applying the Partitioning Around Medoids (PAM) algorithm [<xref ref-type="bibr" rid="CR24">24</xref>], to a square distance matrix <italic>M</italic> in which the <italic>a</italic>th row and <italic>b</italic>th column was set to -<italic>sim</italic>(<italic>D</italic><sub><italic>a</italic></sub>, <italic>D</italic><sub><italic>b</italic></sub>). Affected relatives were excluded to ensure that the ensuing clusters did not depend on enrolment patterns of the affected relatives of particular index cases. The discriminatory power of HPO nodes shared by cases within each cluster was determined by performing a Fisher exact test on the contingency table containing the number of cases inside/outside the cluster vs the number of cases with/without the HPO node. Each cluster was then summarised by the HPO node having the smallest <italic>P</italic> value overall and up to two nodes from other distinct lineages in the HPO graph having a <italic>P</italic> value smaller than 10<sup>-3</sup>. When there were multiple nodes within a lineage fulfilling these criteria, only the most significant node was retained.</p></sec><sec id="Sec10"><title>Whole exome sequencing and variant reporting</title><p>Genomic DNA was isolated from venous blood or saliva obtained from the cases at enrolment or from archived samples. DNA library capture was performed using ROCHE NimbleGen SeqCap EZ 64 Mb Human Exome Library version 3.0 (ROCHE NimbleGen, Inc., Madison, WI, USA). The libraries were sequenced on an Illumina Hiseq 2000 instrument (Additional file <xref rid="MOESM5" ref-type="media">5</xref> [<xref ref-type="bibr" rid="CR25">25</xref>-<xref ref-type="bibr" rid="CR27">27</xref>]). In order to filter for technical artefacts and variants unlikely to be pathogenic, variants were excluded from further analysis if they fulfilled any of the following criteria: (1) variant allele frequency >0.1% in any of the reference cohorts (Additional file <xref rid="MOESM6" ref-type="media">6</xref>); (2) variant not predicted to alter protein by snpEff 3.4 [<xref ref-type="bibr" rid="CR28">28</xref>]; (3) variant not present in other affected pedigree members recruited to BRIDGE-BPD; (4) <3 reads supporting the alternate allele; (5) allele count >1 among 20 in-house whole-genome sequenced controls; (6) overall allele count >20 including exomes from other BRIDGE projects.</p></sec><sec id="Sec11"><title>Assigning causality to rare variants in known BPD genes</title><p>In order to assist analysis of variants identified in the BPD cases, we utilised the ThromboGenomics platform version 1.0 list of 49 genes that have already been linked to human platelet or coagulation disorders (Additional file <xref rid="MOESM7" ref-type="media">7</xref>) [<xref ref-type="bibr" rid="CR29">29</xref>,<xref ref-type="bibr" rid="CR30">30</xref>]. Rare variants in ThromboGenomics genes were classified using the following definitions that are consistent with current EuroGentest guidelines for assigning pathogenicity to variants [<xref ref-type="bibr" rid="CR31">31</xref>]: (1) Pathogenic variant (PV): a variant present in the Human Genome Mutation Database (HGMD) [<xref ref-type="bibr" rid="CR32">32</xref>] with a matched phenotype to the BRIDGE-BPD case; (2) Likely pathogenic variant (LPV): a non-HGMD variant in a gene for which previously reported cases have a matched phenotype with the BRIDGE-BPD case; (3) Variant of unknown significance (VUS): all variants that do not fulfil the previous criteria. Variants that met the criteria for a PV or LPV in an individual case were reclassified as a VUS if there was an inconsistent relationship with phenotype and mode of inheritance in other cases within the BRIDGE-BPD collection.</p></sec></sec><sec id="Sec12" sec-type="results"><title>Results</title><sec id="Sec13"><title>Characteristics of the study collection</title><p>In Stage 1 of the BRIDGE-BPD study, 648 index cases and 59 affected pedigree members (414 female, 293 male) were recruited at 10 enrolment centres (Figure <xref rid="Fig1" ref-type="fig">1</xref>). WES has been completed for 519 cases (Additional file <xref rid="MOESM8" ref-type="media">8</xref>).<fig id="Fig1"><label>Figure 1</label><caption><p>Recruitment to the BRIDGE-BPD study by enrolment centre. Gender stratified recruitment to the BRIDGE-BPD Consortium study is shown according to enrolment centre. <bold>(A)</bold> University of Leuven, Leuven, Belgium; <bold>(B)</bold> Royal Free NHS Trust, London, UK; <bold>(C)</bold> Centre de Référence des Pathologies Plaquettaires, Pessac, France; <bold>(D)</bold> Imperial College Healthcare NHS Trust, London, UK; <bold>(E)</bold> Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK; <bold>(F)</bold> University Hospitals Bristol NHS Foundation Trust, Bristol, UK; <bold>(G)</bold> Haematological Laboratory, Trousseau Children’s Hospital and INsermU1009, Paris, France; <bold>(H)</bold> Children’s Hospital of Philadelphia, Philadelphia, USA; <bold>(I)</bold> Great Ormond Street Hospital For Children NHS Trust, London, UK; <bold>(J)</bold> Charité Universitätsmedizin, Berlin, Germany.</p></caption><graphic xlink:href="13073_2015_151_Fig1_HTML" id="MO1"></graphic></fig></p><p>Platelet count (PLT) was recorded for 639 of the 648 index cases, of which 140 (21.9%) had PLT <100 × 10<sup>9</sup>/L and 53 (8.3%) had PLT >400 × 10<sup>9</sup>/L. Mean platelet volume (MPV) was recorded for 460 index cases of which one (0.2%) had MPV <6 fL and 91 (19.8%) had MPV >12 fL. Since some automated cytometers do not enumerate the MPV in blood samples with large platelets, enrolling clinicians were able to record whether large platelets were visible by light or electron microscopy. This identified a further 56 index cases with large platelets. Bleeding occurred across the range of platelet counts and volumes (Figure <xref rid="Fig2" ref-type="fig">2</xref>A,B). A total of 330 (50.9%) index cases had abnormal platelet morphology, defined as abnormal structure or size determined by light or electron microscopy (Additional file <xref rid="MOESM9" ref-type="media">9</xref>).<fig id="Fig2"><label>Figure 2</label><caption><p>Platelet characteristics of the BRIDGE-BPD study index cases. <bold>(A, B)</bold> The relationship between PLT and MPV in femtolitre (fL) in male and female index cases. The crosses indicate index cases with greater than four (males) or greater than five (females) bleeding symptoms. The circles indicate index cases with fewer bleeding symptoms. NA: not available - cases in which large platelets were identified by the enrolling clinician but the MPV was not recorded. <bold>(C)</bold> Heat map showing the results of light transmission aggregation tests with the indicated activating agonists, classified as normal or abnormal by the enrolling clinician. The numbers in brackets indicate the number of index cases tested for each agonist. Cases are ordered by the number of abnormal or not done results across all six agonists. The bar above the heat map is colour-coded to indicate the enrolment centre for each case.</p></caption><graphic xlink:href="13073_2015_151_Fig2_HTML" id="MO2"></graphic></fig></p><p>After excluding cases with PLT <100 × 10<sup>9</sup>/L or an unmeasured PLT in which reliability of LTA results cannot be guaranteed, there were 428 (66.0%) index cases with an LTA test result recorded for at least one agonist. A total of 196/428 (45.8%) index cases had two or more and 80/428 (18.7%) had three or more agonist responses that were classified as abnormal by the enrolling clinician (Figure <xref rid="Fig2" ref-type="fig">2</xref>C).</p></sec><sec id="Sec14"><title>Clinical phenotype and HPO coding</title><p>The presence or absence of up to 10 bleeding symptoms for males and 12 bleeding symptoms for females was recorded for 528 index cases. Among the 197 male cases, 45 experienced four or more different bleeding symptoms and 12 had six or more symptoms. Among the 331 female cases, 58 experienced six or more different bleeding symptoms and nine had eight or more symptoms. The most common bleeding symptoms were cutaneous bleeding (343 index cases), bleeding from minor wounds (231 index cases) and epistaxis (215 index cases; Figure <xref rid="Fig3" ref-type="fig">3</xref>).<fig id="Fig3"><label>Figure 3</label><caption><p>Bleeding symptoms of BRIDGE-BPD study index cases. Heat map showing the bleeding symptoms recorded for the BRIDGE-BPD index cases. The numbers in brackets indicate the number of index cases reporting each bleeding symptom. Cases are ordered by the number of bleeding symptoms. The bar above heat map is colour-coded to indicate the enrolment centre for each case.</p></caption><graphic xlink:href="13073_2015_151_Fig3_HTML" id="MO3"></graphic></fig></p><p>The median number of HPO terms annotated to each case was 7.5 (range 1 to 23; Figure <xref rid="Fig4" ref-type="fig">4</xref>A). All index cases were annotated with one or more HPO term from the ‘abnormality of blood and blood-forming tissue’ leading class. Of the 648 index cases, 387 (59.7%) were also annotated with one or more HPO term outside of ‘abnormality of blood and blood-forming tissue’ after excluding terms that are ‘descendants’ of both the ‘abnormality of blood and blood-forming tissue’ class and other leading classes (Additional file <xref rid="MOESM4" ref-type="media">4</xref> and Figure <xref rid="Fig4" ref-type="fig">4</xref>B). The most common other HPO terms described abnormalities of the nervous system (149 index cases), immune system (107 index cases) and skeletal system (102 index cases). When index cases were grouped by abnormality in each other organ system, the frequencies of terms relevant to thrombocytopenia, thrombocytosis, bleeding, platelet morphology and platelet aggregation reflected the overall proportions of these terms in the collection for most organ systems. However, in cases with terms relevant to the nervous system and growth these terms showed significantly different distributions (<italic>P</italic> <0.05 after Bonferroni correction, which allows for dependence between tests in addition to multiplicity; Figure <xref rid="Fig4" ref-type="fig">4</xref>B).<fig id="Fig4"><label>Figure 4</label><caption><p>HPO terms coded in BRIDGE-BPD study index cases. <bold>(A)</bold> Bar plot indicating the number of human phenotype ontology (HPO) terms annotated to the index cases. <bold>(B)</bold> Heat map showing the relative frequencies of HPO terms pertinent to abnormalities in platelets and bleeding symptoms and in other organ or disease areas in the BRIDGE-BPD index cases. The numbers in the brackets and the barplots indicate the number of index cases with at least one HPO term pertinent to abnormality in the organ or disease area after removal of overlapping terms. *indicates that the distribution of terms pertinent to enrolment for a particular column is significantly different compared to the sum (along rows) of all other columns (<italic>P</italic> value <0.05 after Bonferroni correction by chi-squared test). The columns are ordered by the number of cases having a term in each leading class.</p></caption><graphic xlink:href="13073_2015_151_Fig4_HTML" id="MO4"></graphic></fig></p></sec><sec id="Sec15"><title>Clustering of cases using HPO</title><p>We performed unsupervised clustering of the HPO-encoded phenotype data in order to obtain an undirected characterisation of different subgroups within the heterogeneous BPD collection and assess whether particular sets of HPO terms tended to co-occur among cases in these groups. The 648 unrelated index cases were partitioned into 30 clusters ranging in size from five to 36 cases. Clinically recognisable subgroups included ‘Impaired epinephrine-induced platelet aggregation, Impaired ADP-induced platelet aggregation’ (Additional file <xref rid="MOESM10" ref-type="media">10</xref>, cluster 18 and Figure <xref rid="Fig5" ref-type="fig">5</xref>) which is a frequently reported pattern of abnormality in light transmission aggregation results identified previously as a Gi-pathway defect [<xref ref-type="bibr" rid="CR33">33</xref>]. A further prominent cluster was ‘Autism spectrum disorder, Thrombocytosis, Decreased mean platelet volume’ (Additional file <xref rid="MOESM10" ref-type="media">10</xref>, cluster 29 and Figure <xref rid="Fig5" ref-type="fig">5</xref>) illustrating an increasingly recognised association between platelet abnormalities and neurological disorders [<xref ref-type="bibr" rid="CR34">34</xref>].<fig id="Fig5"><label>Figure 5</label><caption><p>Phenotype clusters 18 and 29. Illustrative subgraphs of the HPO showing terms for the phenotype clusters 18 (15 cases) and 29 (16 cases). Arrows indicate direct (solid) or indirect (dashed) <italic>is a</italic> relations between terms in the ontology. DMPV: decreased mean platelet volume; PA: phenotypic abnormality; Plt-agg: platelet aggregation abnormality.</p></caption><graphic xlink:href="13073_2015_151_Fig5_HTML" id="MO5"></graphic></fig></p></sec><sec id="Sec16"><title>A new approach to gene discovery using HPO-encoded phenotype data</title><p>In order to resolve causal gene variants from the numerous candidates in a rare disease study in which genetic heterogeneity is expected, it is typically assumed that cases with causal variants in a gene or set of related genes have similar phenotypes. We therefore hypothesised that cases with rare coding variants in a disease gene would tend to cluster strongly on the basis of their HPO-encoded phenotypes. To validate this approach, phenotype closeness was first computed within the pedigree groups without provisional syndromic diagnoses recruited to the BRIDGE-BPD study, who are expected to share a causal gene variant. The phenotypic similarity <italic>P</italic> values corresponding to the 50 pedigrees were significantly enriched near zero (40 had <italic>P</italic> <0.05 (2.5 expected under the null), Figure <xref rid="Fig6" ref-type="fig">6</xref>). Only two pedigrees clearly failed to cluster (<italic>P</italic> = 0.33 and <italic>P</italic> = 0.42). Additionally, we validated our approach by assessing the phenotypic closeness of groups of index cases with provisional syndromic diagnoses made through clinical evaluation, as these are likely to have pertinent variants in a set of related genes. Index cases enrolled with provisional clinical diagnoses of Gorham-Stout syndrome (n = 7) (ORPHA73), HPS (n = 8), pseudohypoparathyroidism type Ib (n = 4) (ORPHA94089), Roifman syndrome (n = 4) (ORPHA353298) and WAS (n = 3) also demonstrated significantly close clustering (<italic>P</italic> <0.05 for each test; Figure <xref rid="Fig6" ref-type="fig">6</xref>). A meta-analysis using Fisher’s method to assess whether these groups clustered closely together as a whole yielded a <italic>P</italic> value that is less than the numerical resolution of the analysis software. These data demonstrate that despite occasional anomalies, BPD cases in which a common genetic basis is likely tend to cluster on the basis of their HPO terms.<fig id="Fig6"><label>Figure 6</label><caption><p>Phenotype similarity clustering of cases according to HPO terms. Heat map showing pairwise phenotypic similarity among affected members of pedigrees, cases with classical syndromes and cases with variants in <italic>ACTN1</italic>. The groups are ordered through complete-linkage hierarchical clustering within each class and <italic>P</italic> values of phenotypic similarity are shown in a scatterplot superimposed over a histogram showing the distribution of <italic>P</italic> values.</p></caption><graphic xlink:href="13073_2015_151_Fig6_HTML" id="MO6"></graphic></fig></p></sec><sec id="Sec17"><title>Cases with variants in <italic>ACTN1</italic> cluster strongly on the basis of their HPO terms</title><p>We applied our approach under an autosomal dominant model and discovered that the gene for which cases had the strongest phenotype similarity was <italic>ACTN1</italic> (<italic>P</italic> = 3.4 × 10<sup>-8</sup>). Causal variants in <italic>ACTN1</italic> have been identified in 18 recently reported pedigrees with a phenotype that comprises mild bleeding and macrothrombocytopenia with no other syndromic features [<xref ref-type="bibr" rid="CR35">35</xref>-<xref ref-type="bibr" rid="CR37">37</xref>]. Consistent with these previous descriptions, amongst the 21 index cases and three pedigree members with <italic>ACTN1</italic> variants in the BRIDGE-BPD analysis, 23/24 (96%) displayed thrombocytopenia and 22/24 (92%) large platelets (Table <xref rid="Tab2" ref-type="table">2</xref>). HPO-based clustering of this group occurred irrespective of whether the <italic>ACTN1</italic> variants were classified as PV, LPV or VUS. Cluster 1 (Additional file <xref rid="MOESM10" ref-type="media">10</xref>) was significantly enriched for variants in <italic>ACTN1</italic> (Fisher’s exact test <italic>P</italic> value 1.79 × 10<sup>-5</sup>).<table-wrap id="Tab2"><label>Table 2</label><caption><p><bold>Rare variants identified in</bold><bold><italic>ACTN1</italic></bold></p></caption><table frame="hsides" rules="groups"><thead><tr valign="top"><th><bold>Case</bold></th><th><bold>Transcript variant ENST00000394419</bold></th><th><bold>Protein variant ENSP00000377941.4</bold></th><th><bold>HGMD variant</bold></th><th><bold>Classification</bold></th><th><bold>PLT, ×10</bold><sup><bold>9</bold></sup><bold>/L</bold></th><th><bold>MPV, fL, and/or presence of macrothrombocytes</bold></th><th><bold>Bleeding phenotype</bold></th></tr></thead><tbody><tr valign="top"><td>B200726</td><td>14:69392385 A/C</td><td>F37C</td><td>No</td><td>LPV</td><td>57</td><td>18.1, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200207</td><td>14:69392358 C/T</td><td>R46Q</td><td>Yes</td><td>PV</td><td>53</td><td>>13, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200209</td><td></td><td></td><td></td><td>PV</td><td>76</td><td>>13, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200212</td><td></td><td></td><td></td><td>PV</td><td>98</td><td>>13, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200254</td><td></td><td></td><td></td><td>PV</td><td>34</td><td>>13, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200735</td><td></td><td></td><td></td><td>PV</td><td>52</td><td>12.0, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200746</td><td>14:69392359 G/A</td><td>R46W</td><td>No</td><td>LPV</td><td>96</td><td>15.2, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200197</td><td>14:69392344 G/C</td><td>Q51E</td><td>No</td><td>LPV</td><td>113</td><td>>13, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200836</td><td>14:69387750 C/T</td><td>V105I</td><td>Yes</td><td>PV</td><td>53</td><td>NA, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200837<sup>a</sup></td><td></td><td></td><td></td><td>PV</td><td>75</td><td>NA, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200671</td><td>14:69371375 C/T</td><td>E225K</td><td>Yes</td><td>PV</td><td>97</td><td>13.7, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200716</td><td></td><td></td><td></td><td>PV</td><td>82</td><td>15.0, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200398</td><td>14:69369274 C/T</td><td>V228I</td><td>No</td><td>LPV</td><td>31</td><td>15.4, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200280</td><td>14:69358897 C/T</td><td>R320Q</td><td>No</td><td>LPV</td><td>108</td><td>15.1, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200281<sup>a</sup></td><td></td><td></td><td></td><td>LPV</td><td>111</td><td>13.9, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200835</td><td>14:69352254 C/T</td><td>A425T</td><td>No</td><td>VUS</td><td>50</td><td>10.0, no macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200283</td><td>14:69349768 A/G</td><td>L547P</td><td>No</td><td>LPV</td><td>91</td><td>13.3, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200048</td><td>14:69349648 G/A</td><td>A587V</td><td>No</td><td>VUS</td><td>390</td><td>NA, no macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200284</td><td>14:69346749 G/T</td><td>T737N</td><td>No</td><td>LPV</td><td>60</td><td>16.1, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200285<sup>a</sup></td><td></td><td></td><td></td><td>LPV</td><td>48</td><td>16.8, macrothrombocytes</td><td>Mild</td></tr><tr valign="top"><td>B200741</td><td>14:69346747 G/A</td><td>R738W</td><td>Yes</td><td>PV</td><td>94</td><td>12.9, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200745</td><td></td><td></td><td></td><td>PV</td><td>70</td><td>14.5, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200750</td><td>14:69346746 C/T</td><td>R738Q</td><td>No</td><td>LPV</td><td>106</td><td>14.0, macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200414</td><td>14:69346704 C/G</td><td>R752P</td><td>No</td><td>LPV</td><td>121</td><td>11.4, macrothrombocytes</td><td>Mild</td></tr></tbody></table><table-wrap-foot><p><sup>a</sup>Affected family member.</p></table-wrap-foot></table-wrap></p></sec><sec id="Sec18"><title>Pertinent and non-pertinent rare variants in <italic>MYH9</italic></title><p>We also assessed the HTS and data analysis pipelines with the autosomal dominant disorder <italic>MYH9</italic>-RD. We selected this disorder because previous descriptions of <italic>MYH9</italic>-RD suggested that cases are usually readily identified clinically and were unlikely to have been recruited. Despite this, we identified nine different <italic>MYH9</italic> missense variants in 13 unrelated BPD cases and one pedigree case. These included seven index cases with rare variants classified as PV or LPV and six index cases with VUS. In order to investigate whether HPO annotation and cluster analysis would have enabled detection of these cases as a distinct phenotype group we explored the HPO terms that had been assigned to these cases. The seven index cases with PV or LPV in <italic>MYH9</italic> included six cases with terms indicating macrothrombocytes, six with terms indicating thrombocytopenia and one with neutrophil Döhle-bodies but none with other recognised features such as renal impairment, sensorineural deafness or cataract (Table <xref rid="Tab3" ref-type="table">3</xref>). The seven index cases with PV or LPV clustered closely together based on the HPO terms (<italic>P</italic> = 0.005) while the six index cases with VUS did not cluster (<italic>P</italic> = 0.684). However, the 13 index cases as a whole did not cluster strongly based on their HPO phenotypes (<italic>P</italic> = 0.363) due to the dilution of PV with VUS. This observation highlights the need for improved algorithms for selecting candidate variants based on predictions of pathogenicity but also supports our stringent approach for assigning causality to variants in known genes.<table-wrap id="Tab3"><label>Table 3</label><caption><p><bold>Rare variants identified in</bold><bold><italic>MYH9</italic></bold><bold>and validated by Sanger sequencing</bold></p></caption><table frame="hsides" rules="groups"><thead><tr valign="top"><th><bold>Case</bold></th><th><bold>Transcript variant ENST00000216181</bold></th><th><bold>Protein variant ENSP00000216181</bold></th><th><bold>HGMD variant</bold></th><th><bold>Classification</bold></th><th><bold>PLT, ×10</bold><sup><bold>9</bold></sup><bold>/L</bold></th><th><bold>MPV, fL and/or presence of macrothrombocytes</bold></th><th><bold>Other</bold><bold><italic>MYH9</italic></bold><bold>-RD characteristics</bold></th></tr></thead><tbody><tr valign="top"><td>B200760</td><td>22:36744995 G/A</td><td>S96L</td><td>Yes</td><td>PV</td><td>180</td><td>Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200771</td><td>22:36705438 C/A</td><td>D578Y</td><td>No</td><td>VUS</td><td>184</td><td>10.1</td><td>None</td></tr><tr valign="top"><td>B200423</td><td>22:36696237 G/A</td><td>A971V</td><td>No</td><td>VUS</td><td>262</td><td>10.2</td><td>None</td></tr><tr valign="top"><td>B200024</td><td>22:36691696 A/G</td><td>S1114P</td><td>Yes</td><td>VUS</td><td>164</td><td>NA</td><td>None</td></tr><tr valign="top"><td>B200245</td><td></td><td></td><td></td><td>VUS</td><td>53</td><td>11.1, Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200243</td><td>22:36691115 G/A</td><td>R1165C</td><td>Yes</td><td>PV</td><td>22</td><td>Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200594</td><td></td><td></td><td></td><td>PV</td><td>46</td><td>Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200595<sup>a</sup></td><td></td><td></td><td></td><td>PV</td><td>61</td><td>Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200614</td><td>22:36688151 C/T</td><td>D1409N</td><td>No</td><td>VUS</td><td>319</td><td>9.8</td><td>None</td></tr><tr valign="top"><td>B200752</td><td></td><td></td><td></td><td>VUS</td><td>149</td><td>10.1, Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200855</td><td></td><td></td><td></td><td>VUS</td><td>95</td><td>16.8, Macrothrombocytes</td><td>None</td></tr><tr valign="top"><td>B200208</td><td>22:36688106 C/T</td><td>D1424N</td><td>Yes</td><td>PV</td><td>99</td><td>13.6</td><td>None</td></tr><tr valign="top"><td>B200010</td><td>22:36685249 G/C</td><td>S1480W</td><td>No</td><td>VUS</td><td>244</td><td>NA</td><td>None</td></tr><tr valign="top"><td>B200244</td><td>22:36678800 G/A</td><td>R1933X</td><td>Yes</td><td>PV</td><td>26</td><td>Macrothrombocytes</td><td>Döhle inclusions</td></tr></tbody></table><table-wrap-foot><p>Other MYH9-RD characteristics sought were the presence of Döhle inclusions, cataract, deafness or renal pathology.</p><p><sup>a</sup>Father of B200594.</p></table-wrap-foot></table-wrap></p></sec><sec id="Sec19"><title>Variant identification in the ThromboGenomics gene list</title><p>The BRIDGE-BPD HTS and data analysis pipelines were tested by evaluating coding variants in the ThromboGenomics list of known genes linked to autosomal recessive or X-linked recessive BPD. Since cases with BPD of known genetic aetiology were excluded from enrolment, we predicted that causal variants in the ThromboGenomics genes would be uncommon. Consistent with this, we identified PV in only two ThromboGenomics genes that completely explained the phenotype of one case with HPS3 and two cases with WAS. Further cases with PV in <italic>F9</italic> and in <italic>F8</italic> displayed reduced FIX and FVIII activity, respectively, that were explained by the observed PV. However, these cases also displayed abnormal platelet function indicating that the PV only partially explained the phenotype. Three cases had variants classified as LPV in ThromboGenomics genes, which cannot be considered causal for the BPD phenotype without further confirmatory investigations (Table <xref rid="Tab4" ref-type="table">4</xref>). A further 10 index cases had variants classified as VUS in ThromboGenomics genes because there was no plausible association between the gene and phenotype (Additional file <xref rid="MOESM11" ref-type="media">11</xref>). This group included cases with variants in coagulation factor genes who had normal levels of coagulation factors.<table-wrap id="Tab4"><label>Table 4</label><caption><p><bold>Pathogenic and likely pathogenic variants identified in genes associated with autosomal recessive and X-linked recessive bleeding and platelet disorders</bold></p></caption><table frame="hsides" rules="groups"><thead><tr valign="top"><th rowspan="2"><bold>Case</bold></th><th rowspan="2"><bold>Position</bold></th><th rowspan="2"><bold>Gene</bold></th><th rowspan="2"><bold>Ref</bold></th><th rowspan="2"><bold>Alt</bold></th><th rowspan="2"><bold>Genotype</bold></th><th rowspan="2"><bold>HGMD</bold></th><th rowspan="2"><bold>Effect</bold><sup><bold>a</bold></sup></th><th rowspan="2"><bold>Haematological HPO terms</bold></th><th rowspan="2"><bold>Other HPO terms</bold></th><th colspan="2"><bold>Classification:</bold></th></tr><tr valign="top"><th><bold>Variant</bold></th><th><bold>Phenotype</bold></th></tr></thead><tbody><tr valign="top"><td>B200286</td><td>3:148881737</td><td><italic>HPS3</italic></td><td>G</td><td>C</td><td>C|C</td><td>Yes</td><td>Abnormal splicing</td><td>Bleeding with minor or no trauma, subcutaneous haemorrhage, menorrhagia, postpartum haemorrhage, impaired ADP-induced platelet aggregation, impaired epinephrine-induced platelet aggregation, epistaxis, prolonged bleeding after surgery, prolonged bleeding after dental extraction, increased mean platelet volume.</td><td>Hypothyroidism, visual impairment, nystagmus, albinism.</td><td>PV</td><td>Explained</td></tr><tr valign="top"><td rowspan="2">B200412</td><td>3:148858819</td><td><italic>HPS3</italic></td><td>T</td><td>TA</td><td>T|TA</td><td>No</td><td>Frameshift</td><td rowspan="2">Impaired epinephrine-induced platelet aggregation, bleeding with minor or no trauma, subcutaneous haemorrhage, epistaxis, menorrhagia, prolonged bleeding after surgery, abnormal dense granules.</td><td>Ocular albinism.</td><td>LPV</td><td rowspan="2">Possibly explained</td></tr><tr valign="top"><td>3:148876539</td><td><italic>HPS3</italic></td><td>G</td><td>A</td><td>G|A</td><td>No</td><td>W593<sup>a</sup></td><td></td><td>LPV</td></tr><tr valign="top"><td rowspan="2">B200068</td><td>10:103827041</td><td><italic>HPS6</italic></td><td>C</td><td>G</td><td>C|G</td><td>No</td><td>L604V</td><td rowspan="2">Increased mean platelet volume.</td><td rowspan="2">Congenital cataract, strabismus, maternal diabetes.</td><td>LPV</td><td rowspan="2">Possibly explained</td></tr><tr valign="top"><td>10:103827554</td><td><italic>HPS6</italic></td><td>C</td><td>G</td><td>C|G</td><td>No</td><td>L775V</td><td>LPV</td></tr><tr valign="top"><td>B200196</td><td>X:48542673</td><td><italic>WAS</italic></td><td>C</td><td>T</td><td>T</td><td>Yes</td><td>T45M</td><td>Thrombocytopenia, abnormal bleeding, decreased mean platelet volume, abnormal platelet shape.</td><td>Recurrent infections.</td><td>PV</td><td>Explained</td></tr><tr valign="top"><td>B200725</td><td>X:48544145</td><td><italic>WAS</italic></td><td>T</td><td>C</td><td>C</td><td>Yes</td><td>F128S</td><td>Monocytosis, neutrophilia, thrombocytopenia, leukocytosis, subcutaneous haemorrhage, gastrointestinal haemorrhage.</td><td></td><td>PV</td><td>Explained</td></tr><tr valign="top"><td>B200443</td><td>X:138633272</td><td><italic>F9</italic></td><td>G</td><td>A</td><td>A</td><td>Yes</td><td>R191H</td><td>Reduced factor IX activity, impaired ADP-induced platelet aggregation, bleeding with minor or no trauma, spontaneous haematomas, abnormal number of dense granules.</td><td></td><td>PV</td><td>Partially explained</td></tr><tr valign="top"><td>B200452</td><td>X:154124407</td><td><italic>F8</italic></td><td>C</td><td>G</td><td>G</td><td>Yes</td><td>S2125T</td><td>Reduced factor VIII activity, persistent bleeding after trauma, prolonged bleeding after surgery, prolonged bleeding after dental extraction, bleeding requiring red cell transfusion, impaired collagen-induced platelet aggregation, bleeding with minor or no trauma, joint haemorrhage, abnormal platelet shape, abnormal number of dense granules.</td><td></td><td>PV</td><td>Partially explained</td></tr><tr valign="top"><td>B200772</td><td>X:154176011</td><td><italic>F8</italic></td><td>A</td><td>G</td><td>G</td><td>No</td><td>F692S</td><td>Reduced factor VIII activity, bruising susceptibility, impaired ADP-induced platelet aggregation, impaired collagen-induced platelet aggregation, impaired thromboxane A2 agonist-induced platelet aggregation, impaired ristocetin-induced platelet aggregation, impaired arachidonic acid-induced platelet aggregation, impaired thrombin-induced platelet aggregation, abnormal platelet granules, bleeding with minor or no trauma.</td><td></td><td>LPV</td><td>Possibly partially explained</td></tr></tbody></table><table-wrap-foot><p>Alt: alternative; Ref: reference.</p><p><sup>a</sup>Effect considered relative to the Consensus Coding Sequence (CCDS) for each gene.</p></table-wrap-foot></table-wrap></p></sec></sec><sec id="Sec20" sec-type="discussion"><title>Discussion</title><p>Heritable BPD are individually rare but collectively common diseases that have heterogeneous clinical characteristics. This clinical complexity, genetic heterogeneity and the large number of candidate genes for BPD has previously hampered gene discovery. In this exploratory Stage 1 of the BRIDGE-BPD study, we first enhanced HPO terminology to enable standardized annotation of the phenotypes of BPD cases. After enrolling the largest collection of BPD cases reported to date, we demonstrated that HPO annotation enabled the characterisation of clusters of BPD cases with similar phenotypes, which we hypothesise have causal genetic variants in the same or related genes. The use of HPO to facilitate research within neurogenetics by comparing standard database descriptions of diseases has been described previously [<xref ref-type="bibr" rid="CR18">18</xref>]. However, this is the first report of the application of HPO to characterise individual case phenotypes and to aid gene discovery through statistical cluster analysis.</p><p>The complex clinical characteristics of the 648 index cases in the Stage 1 BRIDGE-BPD study reflect our desire to enrol a comprehensive collection of cases with different subgroups of disorders within BPD, including bleeding of unknown origin. Previously reported collections have comprised BPD cases without prior investigation [<xref ref-type="bibr" rid="CR4">4</xref>,<xref ref-type="bibr" rid="CR5">5</xref>] and collections linked by similar phenotypes such as abnormal platelet number [<xref ref-type="bibr" rid="CR38">38</xref>], platelet function [<xref ref-type="bibr" rid="CR33">33</xref>] or von Willebrand disease [<xref ref-type="bibr" rid="CR21">21</xref>,<xref ref-type="bibr" rid="CR39">39</xref>]. Thus, the BRIDGE-BPD collection is unique in its size and diversity. In common with previous collections, the BRIDGE-BPD cases were predominantly females, who experienced more bleeding symptoms than males because of obstetric and heavy menstrual bleeding. There was marked heterogeneity in PLT, MPV, platelet morphology, and particularly in LTA platelet function test results, highlighting the diversity of heritable platelet function disorders [<xref ref-type="bibr" rid="CR33">33</xref>].</p><p>A striking finding from the Stage 1 BRIDGE-BPD study was that a median of 7.5 HPO terms were required to annotate the phenotype of each case. These comprised at least one term from ‘abnormality of blood and blood-forming tissue’, reflecting the study inclusion criteria. However, 60% of cases also had HPO terms reflecting abnormality in other organ systems, even after removing overlapping terms. We also observed a statistically significant difference in the frequency of five haematological HPO terms in cases with a nervous system abnormality compared to other cases (<italic>P</italic> = 0.001) reflecting more frequent platelet function and morphology defects. This is consistent with the existing literature indicating that neurological and platelet function disorders often coincide [<xref ref-type="bibr" rid="CR34">34</xref>]. The statistically significant difference in the frequency of the five haematological HPO terms between cases with abnormal growth and those without (<italic>P</italic> = 8.12 × 10<sup>-6</sup>) arose because of enrolment of a group of cases with growth defects at a single centre. One potential criticism of Stage 1 of the BRIDGE-BPD study is that cases were recruited from some centres with highly specialist interests, which may reduce the wider applicability of the study findings. This effect is illustrated by our finding of phenotypic associations between haematological terms and both growth and neurological terms arising from the specialist practice at the University of Leuven. However, this effect is partially offset by recruitment from the UK enrolment centres which are more typical tertiary referral centres, and will not occur in subsequent stages of the BRIDGE-BPD project which will recruit more widely.</p><p>A further unique attribute of the BRIDGE-BPD methodology is that it enables calculation of the closeness between groups of HPO terms annotated to different cases. This provides a measure of phenotypic similarity between cases and enables the definition of case subgroups to assist the analysis of genotype data. We have provided proof of principle of this approach by demonstrating low <italic>P</italic> values for phenotypic similarity between BPD cases from the same pedigrees and between unrelated cases with provisional clinical diagnoses of syndromic BPD, in which both groups are likely to share a causal genetic variant. This included examples with known candidate genes (HPS and WAS) and with unknown genes (Gorham-Stout and Roifman syndromes, pseudohypoparathyroidism type Ib).</p><p>We also evaluated phenotype similarity in groups of cases sharing a rare coding variant in the same gene. The most significantly similar group corresponded to cases harbouring variants in <italic>ACTN1</italic>. Although this particular association could be found through traditional regression-based approaches against platelet count, the HPO approach allows associations between genotypes and combinations of any kind of HPO-encoded phenotypes to be discerned. Here, an association was found between the presence of a variant and two terms jointly - the ‘Thrombocytopenia’ and ‘Increased Mean Platelet Volume’ terms - while regression analysis is typically performed trait by trait in a univariate fashion. Certainly, standard regression methods cannot be used to model heterogeneous combinations of data types (binary, quantitative, categorical), nor can they account for the hierarchical nature of ontologically encoded outcome data. Furthermore, patient HPO data can be linked to data in online human databases such as OMIM, and to model system databases such as the Mouse Phenotype Ontology. In future, this could be used to prioritise genes based on the similarity of groups of cases to ontological phenotype terms derived from the literature.</p><p>We assessed index cases harbouring variants in <italic>MHY9</italic> who were not considered likely to have MYH9-RD by the enrolling clinicians based on clinical evaluation. In this group, the cases with PV or LPV in <italic>MYH9</italic> displayed a high degree of similarity whereas individuals with VUS in <italic>MYH9</italic> were not similar. Furthermore, the index cases with PV or LPV in <italic>MYH9</italic> were phenotypically different from the index cases with VUS. This illustrates that HPO-based clustering can reveal phenotype and genotype links that cannot be made by enrolling clinicians in isolation but only in combination with powerful methods for distinguishing variants by predicted pathogenicity.</p><p>We also demonstrated potential limitations of this approach arising from differences in phenotype coding between and within enrolling centres. For example, two pedigrees showed poor clustering by phenotype, with phenotypic similarity <italic>P</italic> values of 0.42 and 0.33. In one of these pedigrees, the lack of similarity between the two members was because the index case had detailed phenotypic evaluation but the pedigree case consented only to limited evaluation. In the other pedigree, the lack of similarity was due to the marked difference in age at evaluation. This illustrates how the age-dependence of HPO terms such as bleeding symptoms may result in paediatric cases clustering away from adult cases. The potential confounding effect caused by gender-specific HPO terms was minimised by excluding these terms from calculation of similarity scores. Despite these limitations, recruiting from a heterogeneous set of centres is crucial to obtain the sample sizes required to achieve power for gene discovery.</p><p>The approach we have presented for computing similarity scores relies on pre-selecting groups of cases based on the presence of rare variants fulfilling certain criteria, such as presumed mode of inheritance. Sometimes, only a subset of the cases in a group will be explained by variants in the same gene, thus diluting the strength of phenotypic similarity of the entire group. For <italic>ACTN1</italic>, which was used to model similarity clustering analysis, the effect of the dilution was minimal, but in other cases it may play a larger role. The development of new methods to offset this effect is a worthwhile area of future research.</p></sec><sec id="Sec21" sec-type="conclusion"><title>Conclusions</title><p>We have demonstrated that HPO annotation of the large and diverse BRIDGE-BPD collection enables the identification of clusters of individuals with phenotypic similarities who are likely to have causal genetic variants in the same or related genes. Our international consortium has enabled comparison of standardised phenotypic descriptions among cases across the world, which improves statistical power by increasing the size of case groups.</p><p>We have validated the methodologies developed for the BRIDGE-BPD study, using BPD such as <italic>ACTN1</italic>-related disorder, which have been newly reported since the start of recruitment to our study collection. However, these approaches are equally applicable to disorders of unknown genetic basis, in which cases are also expected to show similarity of HPO terms. It is noteworthy that the cases in the stage 1 BRIDGE-BPD study with PV or LPV in established BPD genes together account for less than 10% of the study collection. We anticipate that identification of further case subgroups based on similarity of HPO terms will be a powerful source of new gene discoveries in the remainder of the study collection and among cases in the ongoing enrolment programme. This gene discovery approach, pioneered here in bleeding and platelet disorders, is broadly applicable to other rare disease groups.</p></sec></body><back><app-group><app id="App1"><sec id="Sec22"><title>Additional files</title><p><media position="anchor" xlink:href="13073_2015_151_MOESM1_ESM.pdf" id="MOESM1"><label>Additional file 1:</label><caption><p><bold>A table listing national ethics authorities and study approval numbers.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM2_ESM.pdf" id="MOESM2"><label>Additional file 2:</label><caption><p><bold>A table containing the bleeding symptoms recorded in the BRIDGE-BPD study.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM3_ESM.pdf" id="MOESM3"><label>Additional file 3:</label><caption><p><bold>A table indicating the HPO terms added to enable annotation of bleeding and platelet phenotypes.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM4_ESM.pdf" id="MOESM4"><label>Additional file 4:</label><caption><p><bold>A figure demonstrating the overlap of HPO terms between the ‘abnormality of the blood and blood-forming tissues’ and the other leading classes.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM5_ESM.pdf" id="MOESM5"><label>Additional file 5:</label><caption><p><bold>A description of the whole exome sequencing methodology used in the BRIDGE-BPD study.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM6_ESM.pdf" id="MOESM6"><label>Additional file 6:</label><caption><p><bold>A table containing details of the reference cohorts used in this study.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM7_ESM.pdf" id="MOESM7"><label>Additional file 7:</label><caption><p><bold>A table listing the ThromboGenomics genes.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM8_ESM.pdf" id="MOESM8"><label>Additional file 8:</label><caption><p><bold>A table indicating recruitment to the BRIDGE-BPD study at the completion of Stage 1.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM9_ESM.pdf" id="MOESM9"><label>Additional file 9:</label><caption><p><bold>A figure showing the HPO terms used to describe abnormal platelet morphology.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM10_ESM.pdf" id="MOESM10"><label>Additional file 10:</label><caption><p><bold>A table listing 30 phenotype clusters identified in the BRIDGE-BPD cohort.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM11_ESM.pdf" id="MOESM11"><label>Additional file 11:</label><caption><p><bold>A table listing variants of uncertain significance identified in genes associated with autosomal recessive and X-linked recessive bleeding and platelet disorders.</bold></p></caption></media><media position="anchor" xlink:href="13073_2015_151_MOESM12_ESM.pdf" id="MOESM12"><label>Additional file 12:</label><caption><p><bold>A table listing additional members of the BRIDGE-BPD Consortium.</bold></p></caption></media></p></sec></app></app-group><glossary><title>Abbreviations</title><def-list><def-item><term>BPD</term><def><p>bleeding and platelet disorders</p></def></def-item><def-item><term>HGMD</term><def><p>Human Genome Mutation Database</p></def></def-item><def-item><term>HPO</term><def><p>Human Phenotype Ontology</p></def></def-item><def-item><term>HPS</term><def><p>Hermansky-Pudlak syndrome</p></def></def-item><def-item><term>HTS</term><def><p>high throughput sequencing</p></def></def-item><def-item><term>IC</term><def><p>information content</p></def></def-item><def-item><term>ICD</term><def><p>International Classification of Diseases</p></def></def-item><def-item><term>LPV</term><def><p>likely pathogenic variant</p></def></def-item><def-item><term>LTA</term><def><p>light transmission aggregometry</p></def></def-item><def-item><term>MPV</term><def><p>mean platelet volume</p></def></def-item><def-item><term><italic>MYH9</italic>-RD</term><def><p><italic>MYH9</italic>-related disorder</p></def></def-item><def-item><term>OMIM</term><def><p>Online Mendelian Inheritance in Man</p></def></def-item><def-item><term>PAM</term><def><p>Partitioning Around Medoids</p></def></def-item><def-item><term>PLT</term><def><p>platelet</p></def></def-item><def-item><term>PV</term><def><p>pathogenic variant</p></def></def-item><def-item><term>SNOMED-CT</term><def><p>Systematized Nomenclature of Medicine Clinical Terminology</p></def></def-item><def-item><term>VUS</term><def><p>variant of unknown significance</p></def></def-item><def-item><term>WAS</term><def><p>Wiskott-Aldrich syndrome</p></def></def-item></def-list></glossary><fn-group><fn><p>Sarah K Westbury, Ernest Turro, Daniel Greene, Claire Lentaigne, Anne M Kelly, Tadbir K Bariana, Willem H Ouwehand, Sylvia Richardson, Andrew D Mumford and Kathleen Freson contributed equally to this work.</p></fn><fn><p><bold>Competing interests</bold></p><p>The authors declare that they have no competing interests.</p></fn><fn><p><bold>Authors’ contributions</bold></p><p>SKW designed the study, enrolled cases, collected phenotype data and co-wrote the paper. ET was chief analyst including statistical genomics and co-wrote the paper. AMK, CL and TKB designed the study, enrolled cases, collected phenotype data and developed HPO terms. IS performed whole exome sequencing. DG developed the algorithm for clustering. AA, PP and SM developed the database for phenotype collection and HPO coding. AA also developed the web application. SBGJ and JCS performed co-segregation analysis. AC-H and JDJ performed DNA quality assurance and whole exome sequencing. WNE provided morphology advice. NF was the study co-ordinator and provided ethics support. SR and AR designed the study and analysis plan. PNR designed the study and developed HPO terms. XP, SA, TB, RF, MG, RL, CMM, ATN, KP, DJP, SS, HS, BF, MPL, CvG, PN and KG enrolled cases and collected phenotype data. MAL designed the study, enrolled cases and collected phenotype data. WHO designed the study and analysis plan and co-wrote the paper. ADM and KF designed the study, enrolled cases, collected phenotype data, developed HPO terms and co-wrote the paper. All authors read and approved the final manuscript.</p></fn></fn-group><ack><title>Acknowledgements</title><p>The following colleagues of the Centre de Référence des Pathologies Plaquettaires collaboration network are acknowledged for case enrolment: Claude Négrier, Unité d’Hémostase Clinique, Hôpital Edouard Herriot, Université Lyon 1, Lyon, France; Jean-François Schved, Hopital Saint-Eloi, Département d’Hématologie Biologique, CHU, Montpelier, France; Ségolène Claeyssens-Donadel, Centre Régional d’Hémophilie, Centre Hospitalo Universitaire, Toulouse, France, Veronique Latger-Cannard, Service d’Hématologie Biologique, Hôpitaux du Brabois, CHU Nancy, Vandoeuvre les Nancy. We thank the SPEED and PID members of the BRIDGE Consortium for granting access to 160 and 19 exomes, respectively, for use as controls in this study.</p><p>The authors wish to acknowledge the following funding bodies:</p><p>This study makes use of data generated by the NIHR BioResource - Rare Disease BRIDGE Consortium. A full list of investigators who contributed to the generation of the data is available from <ext-link ext-link-type="uri" xlink:href="http://bioresource.nihr.ac.uk/rare">http://bioresource.nihr.ac.uk/rare</ext-link> diseases. Funding for the BioResource is provided by the National Institute for Health Research of England (NIHR, <ext-link ext-link-type="uri" xlink:href="http://www.nihr.ac.uk">http://www.nihr.ac.uk</ext-link>). This BioResource provides funding for the Biomedical Research Centres/Units Inherited Disorders and Genetic Evaluation (BRIDGE) sequencing studies (<ext-link ext-link-type="uri" xlink:href="http://www.bridgestudy.org.uk">www.bridgestudy.org.uk</ext-link>). ET, DG, NF and IS are supported by the NIHR BioResource - Rare Diseases. Research in the Ouwehand laboratory is supported by program grants from the NIHR to JCS, SBGJ and WHO, the British Heart Foundation (to AR; <ext-link ext-link-type="uri" xlink:href="http://www.bhf.org.uk">http://www.bhf.org.uk</ext-link>) under numbers RP-PG-0310-1002 and RG/09/12/28096; the laboratory also receives funding from NHS Blood and Transplant for AMK. Work in the Laffan laboratory is supported by the NIHR Imperial College Biomedical Research Centre. Work in the Mumford laboratory is supported by the NIHR Bristol Cardiovascular Biomedical Research Unit. CL and SKW are supported by Medical Research Council (MRC) Clinical Training Fellowships (number MR/K023489/1) and TKB by a British Society of Haematology/NHS Blood and Transplant grant. KF and CvG are supported by FWO-Vlaanderen through grants G.0B17.13 N, G.0A23.14 N and OT/14/098 from BOF KULeuven. SR acknowledges support from the MRC and the Cambridge Biomedical Research Centre. The French cases were collected with support from Gis-Maladies Rares, DIATROC program, INSERM (ANR-08-GENO-028-03). The development of the HPO system by PNR is funded by the Bundesministerium für Bildung und Forschung, Germany (BMBF project number 0313911), and by the European Commission’s FP7 programme (Grant Agreement 602300; SYBIL). This study made use of data generated by the UK10K Consortium. A full list of the investigators who contributed to the generation of the data is available from <ext-link ext-link-type="uri" xlink:href="http://www.UK10K.org">www.UK10K.org</ext-link>. Funding for UK10K Consortium was provided by the Wellcome Trust under award WT091310.</p><p>Additional members of the BRIDGE-BPD Consortium are listed in Additional file <xref rid="MOESM12" ref-type="media">12</xref>.</p></ack><ref-list id="Bib1"><title>References</title><ref id="CR1"><label>1.</label><mixed-citation publication-type="other">Rare Disease UK: Improving lives, optimising resources: a vision for the UK rare disease strategy. [<ext-link ext-link-type="uri" xlink:href="http://www.raredisease.org.uk/documents/RD-UK-Strategy-Report.pdf">http://www.raredisease.org.uk/documents/RD-UK-Strategy-Report.pdf</ext-link>]</mixed-citation></ref><ref id="CR2"><label>2.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Harrison</surname><given-names>P</given-names></name><name><surname>Mackie</surname><given-names>I</given-names></name><name><surname>Mumford</surname><given-names>A</given-names></name><name><surname>Briggs</surname><given-names>C</given-names></name><name><surname>Liesner</surname><given-names>R</given-names></name><name><surname>Winter</surname><given-names>M</given-names></name><etal></etal></person-group><article-title>British Committee for Standards in Haematology: Guidelines for the laboratory investigation of heritable disorders of platelet function</article-title><source>Br J Haematol.</source><year>2011</year><volume>155</volume><fpage>30</fpage><lpage>44</lpage><pub-id pub-id-type="doi">10.1111/j.1365-2141.2011.08793.x</pub-id><pub-id pub-id-type="pmid">21790527</pub-id></element-citation></ref><ref id="CR3"><label>3.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Bolton-Maggs</surname><given-names>PH</given-names></name><name><surname>Perry</surname><given-names>DJ</given-names></name><name><surname>Chalmers</surname><given-names>EA</given-names></name><name><surname>Parapia</surname><given-names>LA</given-names></name><name><surname>Wilde</surname><given-names>JT</given-names></name><name><surname>Williams</surname><given-names>MD</given-names></name><etal></etal></person-group><article-title>The rare coagulation disorders–review with guidelines for management from the United Kingdom Haemophilia Centre Doctors’ Organisation</article-title><source>Haemophilia.</source><year>2004</year><volume>10</volume><fpage>593</fpage><lpage>628</lpage><pub-id pub-id-type="doi">10.1111/j.1365-2516.2004.00944.x</pub-id><pub-id pub-id-type="pmid">15357789</pub-id></element-citation></ref><ref id="CR4"><label>4.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Quiroga</surname><given-names>T</given-names></name><name><surname>Goycoolea</surname><given-names>M</given-names></name><name><surname>Panes</surname><given-names>O</given-names></name><name><surname>Aranda</surname><given-names>E</given-names></name><name><surname>Martinez</surname><given-names>C</given-names></name><name><surname>Belmont</surname><given-names>S</given-names></name><etal></etal></person-group><article-title>High prevalence of bleeders of unknown cause among patients with inherited mucocutaneous bleeding. A prospective study of 280 patients and 299 controls</article-title><source>Haematologica.</source><year>2007</year><volume>92</volume><fpage>357</fpage><lpage>65</lpage><pub-id pub-id-type="doi">10.3324/haematol.10816</pub-id><pub-id pub-id-type="pmid">17339185</pub-id></element-citation></ref><ref id="CR5"><label>5.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hayward</surname><given-names>CP</given-names></name><name><surname>Pai</surname><given-names>M</given-names></name><name><surname>Liu</surname><given-names>Y</given-names></name><name><surname>Moffat</surname><given-names>KA</given-names></name><name><surname>Seecharan</surname><given-names>J</given-names></name><name><surname>Webert</surname><given-names>KE</given-names></name><etal></etal></person-group><article-title>Diagnostic utility of light transmission platelet aggregometry: results from a prospective study of individuals referred for bleeding disorder assessments</article-title><source>J Thromb Haemost.</source><year>2009</year><volume>7</volume><fpage>676</fpage><lpage>84</lpage><pub-id pub-id-type="doi">10.1111/j.1538-7836.2009.03273.x</pub-id><pub-id pub-id-type="pmid">19143930</pub-id></element-citation></ref><ref id="CR6"><label>6.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Nurden</surname><given-names>AT</given-names></name><name><surname>Freson</surname><given-names>K</given-names></name><name><surname>Seligsohn</surname><given-names>U</given-names></name></person-group><article-title>Inherited platelet disorders</article-title><source>Haemophilia.</source><year>2012</year><volume>18</volume><fpage>154</fpage><lpage>60</lpage><pub-id pub-id-type="doi">10.1111/j.1365-2516.2012.02856.x</pub-id><pub-id pub-id-type="pmid">22726100</pub-id></element-citation></ref><ref id="CR7"><label>7.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Heath</surname><given-names>KE</given-names></name><name><surname>Campos-Barros</surname><given-names>A</given-names></name><name><surname>Toren</surname><given-names>A</given-names></name><name><surname>Rozenfeld-Granot</surname><given-names>G</given-names></name><name><surname>Carlsson</surname><given-names>LE</given-names></name><name><surname>Savige</surname><given-names>J</given-names></name><etal></etal></person-group><article-title>Nonmuscle myosin heavy chain IIA mutations define a spectrum of autosomal dominant macrothrombocytopenias: May-Hegglin anomaly and Fechtner, Sebastian, Epstein, and Alport-like syndromes</article-title><source>Am J Hum Genet.</source><year>2001</year><volume>69</volume><fpage>1033</fpage><lpage>45</lpage><pub-id pub-id-type="doi">10.1086/324267</pub-id><pub-id pub-id-type="pmid">11590545</pub-id></element-citation></ref><ref id="CR8"><label>8.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Pecci</surname><given-names>A</given-names></name><name><surname>Klersy</surname><given-names>C</given-names></name><name><surname>Gresele</surname><given-names>P</given-names></name><name><surname>Lee</surname><given-names>KJ</given-names></name><name><surname>De Rocco</surname><given-names>D</given-names></name><name><surname>Bozzi</surname><given-names>V</given-names></name><etal></etal></person-group><article-title>MYH9-related disease: a novel prognostic model to predict the clinical evolution of the disease based on genotype-phenotype correlations</article-title><source>Hum Mutat.</source><year>2014</year><volume>35</volume><fpage>236</fpage><lpage>47</lpage><pub-id pub-id-type="doi">10.1002/humu.22476</pub-id><pub-id pub-id-type="pmid">24186861</pub-id></element-citation></ref><ref id="CR9"><label>9.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Albers</surname><given-names>CA</given-names></name><name><surname>Paul</surname><given-names>DS</given-names></name><name><surname>Schulze</surname><given-names>H</given-names></name><name><surname>Freson</surname><given-names>K</given-names></name><name><surname>Stephens</surname><given-names>JC</given-names></name><name><surname>Smethurst</surname><given-names>PA</given-names></name><etal></etal></person-group><article-title>Compound inheritance of a low-frequency regulatory SNP and a rare null mutation in exon-junction complex subunit RBM8A causes TAR syndrome</article-title><source>Nat Genet.</source><year>2012</year><volume>44</volume><fpage>435</fpage><lpage>9</lpage><pub-id pub-id-type="doi">10.1038/ng.1083</pub-id><pub-id pub-id-type="pmid">22366785</pub-id></element-citation></ref><ref id="CR10"><label>10.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Albers</surname><given-names>CA</given-names></name><name><surname>Cvejic</surname><given-names>A</given-names></name><name><surname>Favier</surname><given-names>R</given-names></name><name><surname>Bouwmans</surname><given-names>EE</given-names></name><name><surname>Alessi</surname><given-names>MC</given-names></name><name><surname>Bertone</surname><given-names>P</given-names></name><etal></etal></person-group><article-title>Exome sequencing identifies NBEAL2 as the causative gene for gray platelet syndrome</article-title><source>Nat Genet</source><year>2011</year><volume>43</volume><fpage>735</fpage><lpage>7</lpage><pub-id pub-id-type="doi">10.1038/ng.885</pub-id><pub-id pub-id-type="pmid">21765411</pub-id></element-citation></ref><ref id="CR11"><label>11.</label><mixed-citation publication-type="other">World Health Organization. [<ext-link ext-link-type="uri" xlink:href="http://www.who.int/classifications/icd">http://www.who.int/classifications/icd</ext-link>]</mixed-citation></ref><ref id="CR12"><label>12.</label><mixed-citation publication-type="other">International Health Terminology Standards Development Organisation. [<ext-link ext-link-type="uri" xlink:href="http://www.ihtsdo.org/snomed-ct/">http://www.ihtsdo.org/snomed-ct/</ext-link>]</mixed-citation></ref><ref id="CR13"><label>13.</label><mixed-citation publication-type="other">National Center for Biotechnology Information OMIM: Online Mendelian inheritance in man. [<ext-link ext-link-type="uri" xlink:href="http://www.ncbi.nlm.nih.gov/omim">http://www.ncbi.nlm.nih.gov/omim</ext-link>]</mixed-citation></ref><ref id="CR14"><label>14.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Rath</surname><given-names>A</given-names></name><name><surname>Olry</surname><given-names>A</given-names></name><name><surname>Dhombres</surname><given-names>F</given-names></name><name><surname>Brandt</surname><given-names>MM</given-names></name><name><surname>Urbero</surname><given-names>B</given-names></name><name><surname>Ayme</surname><given-names>S</given-names></name></person-group><article-title>Representation of rare diseases in health information systems: the Orphanet approach to serve a wide range of end users</article-title><source>Hum Mutat.</source><year>2012</year><volume>33</volume><fpage>803</fpage><lpage>8</lpage><pub-id pub-id-type="doi">10.1002/humu.22078</pub-id><pub-id pub-id-type="pmid">22422702</pub-id></element-citation></ref><ref id="CR15"><label>15.</label><mixed-citation publication-type="other">The National Center for Biomedical Ontology Bleeding History Phenotype Ontology. [<ext-link ext-link-type="uri" xlink:href="http://bioportal.bioontology.org/ontologies/BHO">http://bioportal.bioontology.org/ontologies/BHO</ext-link>]</mixed-citation></ref><ref id="CR16"><label>16.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Robinson</surname><given-names>PN</given-names></name><name><surname>Kohler</surname><given-names>S</given-names></name><name><surname>Bauer</surname><given-names>S</given-names></name><name><surname>Seelow</surname><given-names>D</given-names></name><name><surname>Horn</surname><given-names>D</given-names></name><name><surname>Mundlos</surname><given-names>S</given-names></name></person-group><article-title>The Human Phenotype Ontology: a tool for annotating and analyzing human hereditary disease</article-title><source>Am J Hum Genet.</source><year>2008</year><volume>83</volume><fpage>610</fpage><lpage>5</lpage><pub-id pub-id-type="doi">10.1016/j.ajhg.2008.09.017</pub-id><pub-id pub-id-type="pmid">18950739</pub-id></element-citation></ref><ref id="CR17"><label>17.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Kohler</surname><given-names>S</given-names></name><name><surname>Doelken</surname><given-names>SC</given-names></name><name><surname>Mungall</surname><given-names>CJ</given-names></name><name><surname>Bauer</surname><given-names>S</given-names></name><name><surname>Firth</surname><given-names>HV</given-names></name><name><surname>Bailleul-Forestier</surname><given-names>I</given-names></name><etal></etal></person-group><article-title>The Human Phenotype Ontology project: linking molecular biology and disease through phenotype data</article-title><source>Nucleic Acids Res.</source><year>2014</year><volume>42</volume><fpage>D966</fpage><lpage>74</lpage><pub-id pub-id-type="doi">10.1093/nar/gkt1026</pub-id><pub-id pub-id-type="pmid">24217912</pub-id></element-citation></ref><ref id="CR18"><label>18.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Kohler</surname><given-names>S</given-names></name><name><surname>Doelken</surname><given-names>SC</given-names></name><name><surname>Rath</surname><given-names>A</given-names></name><name><surname>Ayme</surname><given-names>S</given-names></name><name><surname>Robinson</surname><given-names>PN</given-names></name></person-group><article-title>Ontological phenotype standards for neurogenetics</article-title><source>Hum Mutat.</source><year>2012</year><volume>33</volume><fpage>1333</fpage><lpage>9</lpage><pub-id pub-id-type="doi">10.1002/humu.22112</pub-id><pub-id pub-id-type="pmid">22573485</pub-id></element-citation></ref><ref id="CR19"><label>19.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Firth</surname><given-names>HV</given-names></name><name><surname>Wright</surname><given-names>CF</given-names></name><name><surname>Study</surname><given-names>DDD</given-names></name></person-group><article-title>The Deciphering Developmental Disorders (DDD) study</article-title><source>Dev Med Child Neurol.</source><year>2011</year><volume>53</volume><fpage>702</fpage><lpage>3</lpage><pub-id pub-id-type="doi">10.1111/j.1469-8749.2011.04032.x</pub-id><pub-id pub-id-type="pmid">21679367</pub-id></element-citation></ref><ref id="CR20"><label>20.</label><mixed-citation publication-type="other">The BRIDGE Study. [<ext-link ext-link-type="uri" xlink:href="http://www.bridgestudy.org">http://www.bridgestudy.org</ext-link>]</mixed-citation></ref><ref id="CR21"><label>21.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Tosetto</surname><given-names>A</given-names></name><name><surname>Rodeghiero</surname><given-names>F</given-names></name><name><surname>Castaman</surname><given-names>G</given-names></name><name><surname>Goodeve</surname><given-names>A</given-names></name><name><surname>Federici</surname><given-names>AB</given-names></name><name><surname>Batlle</surname><given-names>J</given-names></name><etal></etal></person-group><article-title>A quantitative analysis of bleeding symptoms in type 1 von Willebrand disease: results from a multicenter European study (MCMDM-1 VWD)</article-title><source>J Thromb Haemost.</source><year>2006</year><volume>4</volume><fpage>766</fpage><lpage>73</lpage><pub-id pub-id-type="doi">10.1111/j.1538-7836.2006.01847.x</pub-id><pub-id pub-id-type="pmid">16634745</pub-id></element-citation></ref><ref id="CR22"><label>22.</label><mixed-citation publication-type="other">Comprehensive R Archive Network. [<ext-link ext-link-type="uri" xlink:href="http://cran.r-project.org">http://cran.r-project.org</ext-link>]</mixed-citation></ref><ref id="CR23"><label>23.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Resnik</surname><given-names>P</given-names></name></person-group><article-title>Semantic similarity in a taxonomy: An information-based measure and its application to problems of ambiguity in natural language</article-title><source>J Artif Intell Res.</source><year>1999</year><volume>11</volume><fpage>95</fpage><lpage>130</lpage></element-citation></ref><ref id="CR24"><label>24.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Reynolds</surname><given-names>APRG</given-names></name><name><surname>de la Iglesia</surname><given-names>B</given-names></name><name><surname>Rayward-Smith</surname><given-names>VJ</given-names></name></person-group><article-title>Clustering rules: a comparison of partitioning and hierarchical clustering algorithms</article-title><source>J Mathem Modelling Algorithms.</source><year>2006</year><volume>5</volume><fpage>475</fpage><lpage>504</lpage><pub-id pub-id-type="doi">10.1007/s10852-005-9022-1</pub-id></element-citation></ref><ref id="CR25"><label>25.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Li</surname><given-names>H</given-names></name><name><surname>Durbin</surname><given-names>R</given-names></name></person-group><article-title>Fast and accurate long-read alignment with Burrows-Wheeler transform</article-title><source>Bioinformatics.</source><year>2010</year><volume>26</volume><fpage>589</fpage><lpage>95</lpage><pub-id pub-id-type="doi">10.1093/bioinformatics/btp698</pub-id><pub-id pub-id-type="pmid">20080505</pub-id></element-citation></ref><ref id="CR26"><label>26.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>DePristo</surname><given-names>MA</given-names></name><name><surname>Banks</surname><given-names>E</given-names></name><name><surname>Poplin</surname><given-names>R</given-names></name><name><surname>Garimella</surname><given-names>KV</given-names></name><name><surname>Maguire</surname><given-names>JR</given-names></name><name><surname>Hartl</surname><given-names>C</given-names></name><etal></etal></person-group><article-title>A framework for variation discovery and genotyping using next-generation DNA sequencing data</article-title><source>Nat Genet.</source><year>2011</year><volume>43</volume><fpage>491</fpage><lpage>8</lpage><pub-id pub-id-type="doi">10.1038/ng.806</pub-id><pub-id pub-id-type="pmid">21478889</pub-id></element-citation></ref><ref id="CR27"><label>27.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Jun</surname><given-names>G</given-names></name><name><surname>Flickinger</surname><given-names>M</given-names></name><name><surname>Hetrick</surname><given-names>KN</given-names></name><name><surname>Romm</surname><given-names>JM</given-names></name><name><surname>Doheny</surname><given-names>KF</given-names></name><name><surname>Abecasis</surname><given-names>GR</given-names></name><etal></etal></person-group><article-title>Detecting and estimating contamination of human DNA samples in sequencing and array-based genotype data</article-title><source>Am J Hum Genet.</source><year>2012</year><volume>91</volume><fpage>839</fpage><lpage>48</lpage><pub-id pub-id-type="doi">10.1016/j.ajhg.2012.09.004</pub-id><pub-id pub-id-type="pmid">23103226</pub-id></element-citation></ref><ref id="CR28"><label>28.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Cingolani</surname><given-names>P</given-names></name><name><surname>Platts</surname><given-names>A</given-names></name><name><surname>Le Wang</surname><given-names>L</given-names></name><name><surname>Coon</surname><given-names>M</given-names></name><name><surname>Nguyen</surname><given-names>T</given-names></name><name><surname>Wang</surname><given-names>L</given-names></name><etal></etal></person-group><article-title>A program for annotating and predicting the effects of single nucleotide polymorphisms, SnpEff: SNPs in the genome of Drosophila melanogaster strain w1118; iso-2; iso-3</article-title><source>Fly.</source><year>2012</year><volume>6</volume><fpage>80</fpage><lpage>92</lpage><pub-id pub-id-type="doi">10.4161/fly.19695</pub-id><pub-id pub-id-type="pmid">22728672</pub-id></element-citation></ref><ref id="CR29"><label>29.</label><mixed-citation publication-type="other">ThromboGenomics. [<ext-link ext-link-type="uri" xlink:href="http://thrombogenomics.org.uk">http://thrombogenomics.org.uk</ext-link>]</mixed-citation></ref><ref id="CR30"><label>30.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Kiddle</surname><given-names>G</given-names></name><name><surname>Poudel</surname><given-names>P</given-names></name><name><surname>Bray</surname><given-names>P</given-names></name><name><surname>Van Geet</surname><given-names>C</given-names></name><name><surname>Goodeve</surname><given-names>A</given-names></name><name><surname>Kunicki</surname><given-names>T</given-names></name><etal></etal></person-group><article-title>The ThromboGenomics Next Generation Sequencing Platform for the DNA-based diagnosis of known inherited bleeding and platelet disorders</article-title><source>J Thromb Haemost.</source><year>2013</year><volume>11</volume><fpage>223</fpage><pub-id pub-id-type="doi">10.1111/jth.12075</pub-id><pub-id pub-id-type="pmid">23279708</pub-id></element-citation></ref><ref id="CR31"><label>31.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Matthijs</surname><given-names>GAM</given-names></name><name><surname>Bauer</surname><given-names>P</given-names></name><name><surname>Corveleyn</surname><given-names>A</given-names></name><name><surname>Eck</surname><given-names>S</given-names></name><name><surname>Feenstra</surname><given-names>I</given-names></name><name><surname>Race</surname><given-names>V</given-names></name><etal></etal></person-group><article-title>EuroGentest guidelines for diagnostic next generation sequencing</article-title><source>Eur J Hum Genet.</source><year>2014</year><volume>22</volume><fpage>28</fpage></element-citation></ref><ref id="CR32"><label>32.</label><mixed-citation publication-type="other">Human Genome Mutation Database. [<ext-link ext-link-type="uri" xlink:href="http://www.hgmd.org">http://www.hgmd.org</ext-link>]</mixed-citation></ref><ref id="CR33"><label>33.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Dawood</surname><given-names>BB</given-names></name><name><surname>Lowe</surname><given-names>GC</given-names></name><name><surname>Lordkipanidze</surname><given-names>M</given-names></name><name><surname>Bem</surname><given-names>D</given-names></name><name><surname>Daly</surname><given-names>ME</given-names></name><name><surname>Makris</surname><given-names>M</given-names></name><etal></etal></person-group><article-title>Evaluation of participants with suspected heritable platelet function disorders including recommendation and validation of a streamlined agonist panel</article-title><source>Blood.</source><year>2012</year><volume>120</volume><fpage>5041</fpage><lpage>9</lpage><pub-id pub-id-type="doi">10.1182/blood-2012-07-444281</pub-id><pub-id pub-id-type="pmid">23002116</pub-id></element-citation></ref><ref id="CR34"><label>34.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Goubau</surname><given-names>C</given-names></name><name><surname>Buyse</surname><given-names>GM</given-names></name><name><surname>Van Geet</surname><given-names>C</given-names></name><name><surname>Freson</surname><given-names>K</given-names></name></person-group><article-title>The contribution of platelet studies to the understanding of disease mechanisms in complex and monogenetic neurological disorders</article-title><source>Dev Med Child Neurol.</source><year>2014</year><volume>56</volume><fpage>724</fpage><lpage>31</lpage><pub-id pub-id-type="doi">10.1111/dmcn.12421</pub-id><pub-id pub-id-type="pmid">24579816</pub-id></element-citation></ref><ref id="CR35"><label>35.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Kunishima</surname><given-names>S</given-names></name><name><surname>Okuno</surname><given-names>Y</given-names></name><name><surname>Yoshida</surname><given-names>K</given-names></name><name><surname>Shiraishi</surname><given-names>Y</given-names></name><name><surname>Sanada</surname><given-names>M</given-names></name><name><surname>Muramatsu</surname><given-names>H</given-names></name><etal></etal></person-group><article-title>ACTN1 mutations cause congenital macrothrombocytopenia</article-title><source>Am J Hum Genet.</source><year>2013</year><volume>92</volume><fpage>431</fpage><lpage>8</lpage><pub-id pub-id-type="doi">10.1016/j.ajhg.2013.01.015</pub-id><pub-id pub-id-type="pmid">23434115</pub-id></element-citation></ref><ref id="CR36"><label>36.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Gueguen</surname><given-names>P</given-names></name><name><surname>Rouault</surname><given-names>K</given-names></name><name><surname>Chen</surname><given-names>JM</given-names></name><name><surname>Raguenes</surname><given-names>O</given-names></name><name><surname>Fichou</surname><given-names>Y</given-names></name><name><surname>Hardy</surname><given-names>E</given-names></name><etal></etal></person-group><article-title>A missense mutation in the alpha-actinin 1 gene (ACTN1) is the cause of autosomal dominant macrothrombocytopenia in a large French family</article-title><source>PLoS One.</source><year>2013</year><volume>8</volume><fpage>e74728</fpage><pub-id pub-id-type="doi">10.1371/journal.pone.0074728</pub-id><pub-id pub-id-type="pmid">24069336</pub-id></element-citation></ref><ref id="CR37"><label>37.</label><mixed-citation publication-type="other">Bottega R, Marconi C, Faleschini M, Baj G, Cagioni C, Pippucci T, et al. ACTN1-related thrombocytopenia: identification of novel families for phenotypic characterization. Blood. 2015;125:869–72.</mixed-citation></ref><ref id="CR38"><label>38.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Noris</surname><given-names>P</given-names></name><name><surname>Klersy</surname><given-names>C</given-names></name><name><surname>Gresele</surname><given-names>P</given-names></name><name><surname>Giona</surname><given-names>F</given-names></name><name><surname>Giordano</surname><given-names>P</given-names></name><name><surname>Minuz</surname><given-names>P</given-names></name><etal></etal></person-group><article-title>Platelet size for distinguishing between inherited thrombocytopenias and immune thrombocytopenia: a multicentric, real life study</article-title><source>Br J Haematol.</source><year>2013</year><volume>162</volume><fpage>112</fpage><lpage>9</lpage><pub-id pub-id-type="doi">10.1111/bjh.12349</pub-id><pub-id pub-id-type="pmid">23617394</pub-id></element-citation></ref><ref id="CR39"><label>39.</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>James</surname><given-names>PD</given-names></name><name><surname>Notley</surname><given-names>C</given-names></name><name><surname>Hegadorn</surname><given-names>C</given-names></name><name><surname>Leggo</surname><given-names>J</given-names></name><name><surname>Tuttle</surname><given-names>A</given-names></name><name><surname>Tinlin</surname><given-names>S</given-names></name><etal></etal></person-group><article-title>The mutational spectrum of type 1 von Willebrand disease: Results from a Canadian cohort study</article-title><source>Blood.</source><year>2007</year><volume>109</volume><fpage>145</fpage><lpage>54</lpage><pub-id pub-id-type="doi">10.1182/blood-2006-05-021105.</pub-id><pub-id pub-id-type="pmid">17190853</pub-id></element-citation></ref></ref-list></back></pmc></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Pmc/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000D17 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd -nk 000D17 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Asie
|area= AustralieFrV1
|flux= Pmc
|étape= Corpus
|type= RBID
|clé=
|texte=
}}
| This area was generated with Dilib version V0.6.33. |  |