<affiliation wicri:level="1"><nlm:affiliation>Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA; Pediatric Residency Program, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224, USA;</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA; Pediatric Residency Program, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224</wicri:regionArea>
<wicri:noRegion>Pennsylvania 15224</wicri:noRegion>
</affiliation>