Population density and childhood leukaemia: results of the EUROCLUS study
Identifieur interne : 00C425 ( Main/Exploration ); précédent : 00C424; suivant : 00C426Population density and childhood leukaemia: results of the EUROCLUS study
Auteurs : F. E. Alexander [Royaume-Uni] ; P. Boyle [Italie] ; P.-M. Carli [France] ; J. W. Coebergh [Pays-Bas] ; A. Ekbom [Suède] ; F. Levi [Suisse] ; P. A. Mckinney [Royaume-Uni] ; W. Mcwhirter [Australie] ; J. Michaelis [Allemagne] ; R. Peris-Bonet [Espagne] ; E. Petridou [Grèce] ; V. Pompe-Kirn [Slovénie] ; I. Pl Sko ; E. Pukkala [Finlande] ; M. Rahu [Estonie] ; C. A. Stiller [Royaume-Uni] ; H. Storm [Danemark] ; B. Terracini [Italie] ; L. Vatten [Norvège] ; N. Wray [Royaume-Uni]Source :
- European Journal of Cancer [ 0959-8049 ] ; 1999.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Enfant, épidémiologie, Densité de population, Simulation.
English descriptors
- KwdEn :
- Acute lymphoblastic leukaemia, Ages years, Cancer causes control, Cancer registry, Carcinogenesis, Child, Childhood cancer registry, Childhood leukaemia, Childhood peak, Cluster analysis, Correlation, Deviance, Elsevier science, Epidemiology, Euroclus, Euroclus project, Euroclus study, Geographical epidemiology, Great britain, High incidence, Higher incidence, Iarc publication, Incidence, Incidence rate ratios, Incidence rates, Individual countries, Infection, Infectious agent, Infectious agents, Infective basis, Intermediate population density, Large areas, Leukaemia, Leukemia, Lymphoblastic, Lymphoblastic leukaemia, Null hypothesis, Null model, Pathogenesis, Poisson, Poisson distribution, Poisson model, Poisson regression, Population counts, Population densities, Population density, Population density strata, Population density stratum, Present results, Probability distribution, Quadratic, Quadratic terms, Quadratic trend, Rate ratios, Simulation, Small areas, Small census areas, Statistical analysis, Statistical testing, Stratum, Such epidemics, Tted values, Tting country, Unimodal pattern.
- Teeft :
- Acute lymphoblastic leukaemia, Ages years, Cancer causes control, Cancer registry, Childhood cancer registry, Childhood leukaemia, Childhood peak, Deviance, Elsevier science, Epidemiology, Euroclus, Euroclus project, Euroclus study, Geographical epidemiology, Great britain, High incidence, Higher incidence, Iarc publication, Incidence, Incidence rate ratios, Incidence rates, Individual countries, Infectious agent, Infectious agents, Infective basis, Intermediate population density, Large areas, Leukaemia, Lymphoblastic, Lymphoblastic leukaemia, Null hypothesis, Null model, Poisson, Poisson distribution, Poisson model, Poisson regression, Population counts, Population densities, Population density, Population density strata, Population density stratum, Present results, Quadratic, Quadratic terms, Quadratic trend, Rate ratios, Simulation, Small areas, Small census areas, Statistical testing, Stratum, Such epidemics, Tted values, Tting country, Unimodal pattern.
Abstract
Abstract: The EUROCLUS study assembled incidence data for 13551 cases of childhood leukaemia (CL) diagnosed between 1980 and 1989 in 17 countries (or regions of countries). These were referenced by location at diagnosis to small census areas of which there were 25723 in the study area. Population counts, surface area and, hence, population density were available for all these small areas. Previous analyses have shown limited extra-Poisson variation (EPV) of case counts within small areas; this is most pronounced in areas of intermediate population density (150–499 persons/km2). In this study, the data set was examined in more detail for evidence that variations in incidence and EPV of CL are associated with population density. Incidence showed a curvilinear association with population density and was highest in areas which were somewhat more densely populated (500–750 persons/km2), where the incidence rate ratio relative to areas having ≥1000 persons/km2 was 1.16 (95% confidence interval 1.07–1.26) and the P value for quadratic trend across eight strata of population density was 0.02. Incidence in these areas is uniformly elevated and showed no evidence of heterogeneity (i.e. EPV). Statistically significant evidence of EPV was evident amongst some of the areas previously classified as intermediate density areas (specifically, those with a density of 250–499 persons/km2, P<0.001 for CL). These results were interpreted in terms of the current aetiological hypotheses for CL which propose that exposure to localised epidemics of one or more common infectious agent may contribute to the development of leukaemia. They suggest that such epidemics arise regularly in moderately densely populated areas and also sporadically in areas which are somewhat less densely populated. Although other interpretations are possible, these results may assist in the identification of characteristics which infectious agents must possess if direct or indirect causes of CL.
Url:
DOI: 10.1016/S0959-8049(98)00385-2
Affiliations:
- Allemagne, Australie, Danemark, Espagne, Estonie, Finlande, France, Grèce, Italie, Norvège, Pays-Bas, Royaume-Uni, Slovénie, Suisse, Suède
- Angleterre, Bourgogne, Bourgogne-Franche-Comté, Canton de Vaud, Hollande-Méridionale, Lombardie, Oxfordshire, Piémont, Rhénanie-Palatinat, Trøndelag, Écosse
- Dijon, Lausanne, Mayence, Milan, Oxford, Rotterdam, Trondheim, Turin, Édimbourg
- Université d'Oxford, Université d'Édimbourg
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Le document en format XML
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E." last="Alexander">F. E. Alexander</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Public Health Sciences, The University of Edinburgh, Medical School, Teviot Place, Edinburgh, EH8 9AG</wicri:regionArea><orgName type="university">Université d'Édimbourg</orgName><placeName><settlement type="city">Édimbourg</settlement><region type="country">Écosse</region></placeName></affiliation><affiliation></affiliation></author><author><name sortKey="Boyle, P" sort="Boyle, P" uniqKey="Boyle P" first="P." last="Boyle">P. Boyle</name><affiliation wicri:level="3"><country xml:lang="fr">Italie</country><wicri:regionArea>Division of Epidemiology and Biostatistics, Milan</wicri:regionArea><placeName><settlement type="city">Milan</settlement><region nuts="2">Lombardie</region></placeName></affiliation></author><author><name sortKey="Carli, P M" sort="Carli, P M" uniqKey="Carli P" first="P.-M." last="Carli">P.-M. 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Coebergh</name><affiliation wicri:level="3"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Department of Epidemiology and Biostatistics, Erasmus University, Rotterdam</wicri:regionArea><placeName><settlement type="city">Rotterdam</settlement><region nuts="2" type="province">Hollande-Méridionale</region></placeName></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Dutch Childhood Leukaemia Study Group (DCLSG), The Hague</wicri:regionArea><wicri:noRegion>The Hague</wicri:noRegion></affiliation></author><author><name sortKey="Ekbom, A" sort="Ekbom, A" uniqKey="Ekbom A" first="A." last="Ekbom">A. Ekbom</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Uppsala Universitet, Cancer Epidemiology Unit, University Hospital, Uppsala</wicri:regionArea><wicri:noRegion>Uppsala</wicri:noRegion></affiliation></author><author><name sortKey="Levi, F" sort="Levi, F" uniqKey="Levi F" first="F." last="Levi">F. Levi</name><affiliation wicri:level="3"><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut Universitaire de Médecine Sociale et Préventive, Régistres Vaudois et Neuchâtelois des Tumeurs, Lausanne</wicri:regionArea><placeName><settlement type="city">Lausanne</settlement><region nuts="3" type="region">Canton de Vaud</region></placeName></affiliation></author><author><name sortKey="Mckinney, P A" sort="Mckinney, P A" uniqKey="Mckinney P" first="P. A." last="Mckinney">P. A. Mckinney</name><affiliation wicri:level="3"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Information and Statistics Division of the NHS in Scotland, Edinburgh</wicri:regionArea><placeName><settlement type="city">Édimbourg</settlement><region type="country">Écosse</region></placeName></affiliation></author><author><name sortKey="Mcwhirter, W" sort="Mcwhirter, W" uniqKey="Mcwhirter W" first="W." last="Mcwhirter">W. Mcwhirter</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Child Health, The University of Queensland, Royal Children's Hospital, Queensland</wicri:regionArea><wicri:noRegion>Queensland</wicri:noRegion></affiliation></author><author><name sortKey="Michaelis, J" sort="Michaelis, J" uniqKey="Michaelis J" first="J." last="Michaelis">J. Michaelis</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Johannes Gutenberg-Universitat Mainz Klinikum, Institut fur Med Statistik und Dokumentation, Mainz</wicri:regionArea><placeName><region type="land" nuts="2">Rhénanie-Palatinat</region><settlement type="city">Mayence</settlement></placeName></affiliation></author><author><name sortKey="Peris Bonet, R" sort="Peris Bonet, R" uniqKey="Peris Bonet R" first="R." last="Peris-Bonet">R. Peris-Bonet</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>Instituto de Estudios Documentales e Historicos sobre la Ciencia (IEDHC) (Universidad de Valencia–CSIC), Valencia</wicri:regionArea><wicri:noRegion>Valencia</wicri:noRegion></affiliation></author><author><name sortKey="Petridou, E" sort="Petridou, E" uniqKey="Petridou E" first="E." last="Petridou">E. Petridou</name><affiliation wicri:level="1"><country xml:lang="fr">Grèce</country><wicri:regionArea>Department of Hygiene and Epidemiology, University of Athens</wicri:regionArea><wicri:noRegion>University of Athens</wicri:noRegion></affiliation></author><author><name sortKey="Pompe Kirn, V" sort="Pompe Kirn, V" uniqKey="Pompe Kirn V" first="V." last="Pompe-Kirn">V. Pompe-Kirn</name><affiliation wicri:level="1"><country xml:lang="fr">Slovénie</country><wicri:regionArea>Register Raka za Slovenijo (Cancer Registry of Slovenia), Institute of Oncology, Ljubljana</wicri:regionArea><wicri:noRegion>Ljubljana</wicri:noRegion></affiliation></author><author><name sortKey="Pl Sko, I" sort="Pl Sko, I" uniqKey="Pl Sko I" first="I." last="Pl Sko">I. Pl Sko</name><affiliation><wicri:noCountry code="subField">Republic</wicri:noCountry></affiliation></author><author><name sortKey="Pukkala, E" sort="Pukkala, E" uniqKey="Pukkala E" first="E." last="Pukkala">E. Pukkala</name><affiliation wicri:level="1"><country xml:lang="fr">Finlande</country><wicri:regionArea>Finnish Cancer Registry, Helsinki</wicri:regionArea><wicri:noRegion>Helsinki</wicri:noRegion></affiliation></author><author><name sortKey="Rahu, M" sort="Rahu, M" uniqKey="Rahu M" first="M." last="Rahu">M. Rahu</name><affiliation wicri:level="1"><country xml:lang="fr">Estonie</country><wicri:regionArea>Department of Epidemiology and Biostatistics, Institute of Experimental and Clinical Medicine, Tallinn</wicri:regionArea><wicri:noRegion>Tallinn</wicri:noRegion></affiliation></author><author><name sortKey="Stiller, C A" sort="Stiller, C A" uniqKey="Stiller C" first="C. A." last="Stiller">C. A. Stiller</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Childhood Cancer Research Group, Department of Paediatrics, University of Oxford, Oxford</wicri:regionArea><placeName><settlement type="city">Oxford</settlement><region type="country">Angleterre</region><region type="comté" nuts="2">Oxfordshire</region><settlement type="city">Oxford</settlement></placeName><orgName type="university">Université d'Oxford</orgName></affiliation></author><author><name sortKey="Storm, H" sort="Storm, H" uniqKey="Storm H" first="H." last="Storm">H. Storm</name><affiliation wicri:level="1"><country xml:lang="fr">Danemark</country><wicri:regionArea>Danish Cancer Registry, Division for Cancer Epidemiology, Kobenhaven Ø</wicri:regionArea><wicri:noRegion>Kobenhaven Ø</wicri:noRegion></affiliation></author><author><name sortKey="Terracini, B" sort="Terracini, B" uniqKey="Terracini B" first="B." last="Terracini">B. Terracini</name><affiliation wicri:level="3"><country xml:lang="fr">Italie</country><wicri:regionArea>Department of Biological Sciences and Human Oncology, University of Turin, Torino</wicri:regionArea><placeName><settlement type="city">Turin</settlement><region type="région" nuts="2">Piémont</region></placeName></affiliation></author><author><name sortKey="Vatten, L" sort="Vatten, L" uniqKey="Vatten L" first="L." last="Vatten">L. Vatten</name><affiliation wicri:level="3"><country xml:lang="fr">Norvège</country><wicri:regionArea>Institute of Community Medicine, University Medical Centre, Trondheim</wicri:regionArea><placeName><settlement type="city">Trondheim</settlement><region type="région" nuts="2">Trøndelag</region></placeName></affiliation></author><author><name sortKey="Wray, N" sort="Wray, N" uniqKey="Wray N" first="N." last="Wray">N. Wray</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Public Health Sciences, The University of Edinburgh, Medical School, Teviot Place, Edinburgh, EH8 9AG</wicri:regionArea><orgName type="university">Université d'Édimbourg</orgName><placeName><settlement type="city">Édimbourg</settlement><region type="country">Écosse</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">European Journal of Cancer</title><title level="j" type="abbrev">EJC</title><idno type="ISSN">0959-8049</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1999">1999</date><biblScope unit="volume">35</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="439">439</biblScope><biblScope unit="page" to="444">444</biblScope></imprint><idno type="ISSN">0959-8049</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0959-8049</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acute lymphoblastic leukaemia</term><term>Ages years</term><term>Cancer causes control</term><term>Cancer registry</term><term>Carcinogenesis</term><term>Child</term><term>Childhood cancer registry</term><term>Childhood leukaemia</term><term>Childhood peak</term><term>Cluster analysis</term><term>Correlation</term><term>Deviance</term><term>Elsevier science</term><term>Epidemiology</term><term>Euroclus</term><term>Euroclus project</term><term>Euroclus study</term><term>Geographical epidemiology</term><term>Great britain</term><term>High incidence</term><term>Higher incidence</term><term>Iarc publication</term><term>Incidence</term><term>Incidence rate ratios</term><term>Incidence rates</term><term>Individual countries</term><term>Infection</term><term>Infectious agent</term><term>Infectious agents</term><term>Infective basis</term><term>Intermediate population density</term><term>Large areas</term><term>Leukaemia</term><term>Leukemia</term><term>Lymphoblastic</term><term>Lymphoblastic leukaemia</term><term>Null hypothesis</term><term>Null model</term><term>Pathogenesis</term><term>Poisson</term><term>Poisson distribution</term><term>Poisson model</term><term>Poisson regression</term><term>Population counts</term><term>Population densities</term><term>Population density</term><term>Population density strata</term><term>Population density stratum</term><term>Present results</term><term>Probability distribution</term><term>Quadratic</term><term>Quadratic terms</term><term>Quadratic trend</term><term>Rate ratios</term><term>Simulation</term><term>Small areas</term><term>Small census areas</term><term>Statistical analysis</term><term>Statistical testing</term><term>Stratum</term><term>Such epidemics</term><term>Tted values</term><term>Tting country</term><term>Unimodal pattern</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Analyse amas</term><term>Analyse statistique</term><term>Carcinogenèse</term><term>Corrélation</term><term>Densité population</term><term>Enfant</term><term>Epidémiologie</term><term>Infection</term><term>Leucémie</term><term>Loi probabilité</term><term>Pathogénie</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acute lymphoblastic leukaemia</term><term>Ages years</term><term>Cancer causes control</term><term>Cancer registry</term><term>Childhood cancer registry</term><term>Childhood leukaemia</term><term>Childhood peak</term><term>Deviance</term><term>Elsevier science</term><term>Epidemiology</term><term>Euroclus</term><term>Euroclus project</term><term>Euroclus study</term><term>Geographical epidemiology</term><term>Great britain</term><term>High incidence</term><term>Higher incidence</term><term>Iarc publication</term><term>Incidence</term><term>Incidence rate ratios</term><term>Incidence rates</term><term>Individual countries</term><term>Infectious agent</term><term>Infectious agents</term><term>Infective basis</term><term>Intermediate population density</term><term>Large areas</term><term>Leukaemia</term><term>Lymphoblastic</term><term>Lymphoblastic leukaemia</term><term>Null hypothesis</term><term>Null model</term><term>Poisson</term><term>Poisson distribution</term><term>Poisson model</term><term>Poisson regression</term><term>Population counts</term><term>Population densities</term><term>Population density</term><term>Population density strata</term><term>Population density stratum</term><term>Present results</term><term>Quadratic</term><term>Quadratic terms</term><term>Quadratic trend</term><term>Rate ratios</term><term>Simulation</term><term>Small areas</term><term>Small census areas</term><term>Statistical testing</term><term>Stratum</term><term>Such epidemics</term><term>Tted values</term><term>Tting country</term><term>Unimodal pattern</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Enfant</term><term>épidémiologie</term><term>Densité de population</term><term>Simulation</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: The EUROCLUS study assembled incidence data for 13551 cases of childhood leukaemia (CL) diagnosed between 1980 and 1989 in 17 countries (or regions of countries). These were referenced by location at diagnosis to small census areas of which there were 25723 in the study area. Population counts, surface area and, hence, population density were available for all these small areas. Previous analyses have shown limited extra-Poisson variation (EPV) of case counts within small areas; this is most pronounced in areas of intermediate population density (150–499 persons/km2). In this study, the data set was examined in more detail for evidence that variations in incidence and EPV of CL are associated with population density. Incidence showed a curvilinear association with population density and was highest in areas which were somewhat more densely populated (500–750 persons/km2), where the incidence rate ratio relative to areas having ≥1000 persons/km2 was 1.16 (95% confidence interval 1.07–1.26) and the P value for quadratic trend across eight strata of population density was 0.02. Incidence in these areas is uniformly elevated and showed no evidence of heterogeneity (i.e. EPV). Statistically significant evidence of EPV was evident amongst some of the areas previously classified as intermediate density areas (specifically, those with a density of 250–499 persons/km2, P<0.001 for CL). These results were interpreted in terms of the current aetiological hypotheses for CL which propose that exposure to localised epidemics of one or more common infectious agent may contribute to the development of leukaemia. They suggest that such epidemics arise regularly in moderately densely populated areas and also sporadically in areas which are somewhat less densely populated. Although other interpretations are possible, these results may assist in the identification of characteristics which infectious agents must possess if direct or indirect causes of CL.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Danemark</li><li>Espagne</li><li>Estonie</li><li>Finlande</li><li>France</li><li>Grèce</li><li>Italie</li><li>Norvège</li><li>Pays-Bas</li><li>Royaume-Uni</li><li>Slovénie</li><li>Suisse</li><li>Suède</li></country><region><li>Angleterre</li><li>Bourgogne</li><li>Bourgogne-Franche-Comté</li><li>Canton de Vaud</li><li>Hollande-Méridionale</li><li>Lombardie</li><li>Oxfordshire</li><li>Piémont</li><li>Rhénanie-Palatinat</li><li>Trøndelag</li><li>Écosse</li></region><settlement><li>Dijon</li><li>Lausanne</li><li>Mayence</li><li>Milan</li><li>Oxford</li><li>Rotterdam</li><li>Trondheim</li><li>Turin</li><li>Édimbourg</li></settlement><orgName><li>Université d'Oxford</li><li>Université d'Édimbourg</li></orgName></list><tree><noCountry><name sortKey="Pl Sko, I" sort="Pl Sko, I" uniqKey="Pl Sko I" first="I." last="Pl Sko">I. Pl Sko</name></noCountry><country name="Royaume-Uni"><region name="Écosse"><name sortKey="Alexander, F E" sort="Alexander, F E" uniqKey="Alexander F" first="F. E." last="Alexander">F. E. Alexander</name></region><name sortKey="Mckinney, P A" sort="Mckinney, P A" uniqKey="Mckinney P" first="P. A." last="Mckinney">P. A. Mckinney</name><name sortKey="Stiller, C A" sort="Stiller, C A" uniqKey="Stiller C" first="C. A." last="Stiller">C. A. Stiller</name><name sortKey="Wray, N" sort="Wray, N" uniqKey="Wray N" first="N." last="Wray">N. Wray</name></country><country name="Italie"><region name="Lombardie"><name sortKey="Boyle, P" sort="Boyle, P" uniqKey="Boyle P" first="P." last="Boyle">P. Boyle</name></region><name sortKey="Terracini, B" sort="Terracini, B" uniqKey="Terracini B" first="B." last="Terracini">B. Terracini</name></country><country name="France"><region name="Bourgogne-Franche-Comté"><name sortKey="Carli, P M" sort="Carli, P M" uniqKey="Carli P" first="P.-M." last="Carli">P.-M. Carli</name></region></country><country name="Pays-Bas"><region name="Hollande-Méridionale"><name sortKey="Coebergh, J W" sort="Coebergh, J W" uniqKey="Coebergh J" first="J. W." last="Coebergh">J. W. Coebergh</name></region><name sortKey="Coebergh, J W" sort="Coebergh, J W" uniqKey="Coebergh J" first="J. W." last="Coebergh">J. W. Coebergh</name></country><country name="Suède"><noRegion><name sortKey="Ekbom, A" sort="Ekbom, A" uniqKey="Ekbom A" first="A." last="Ekbom">A. Ekbom</name></noRegion></country><country name="Suisse"><region name="Canton de Vaud"><name sortKey="Levi, F" sort="Levi, F" uniqKey="Levi F" first="F." last="Levi">F. Levi</name></region></country><country name="Australie"><noRegion><name sortKey="Mcwhirter, W" sort="Mcwhirter, W" uniqKey="Mcwhirter W" first="W." last="Mcwhirter">W. Mcwhirter</name></noRegion></country><country name="Allemagne"><region name="Rhénanie-Palatinat"><name sortKey="Michaelis, J" sort="Michaelis, J" uniqKey="Michaelis J" first="J." last="Michaelis">J. Michaelis</name></region></country><country name="Espagne"><noRegion><name sortKey="Peris Bonet, R" sort="Peris Bonet, R" uniqKey="Peris Bonet R" first="R." last="Peris-Bonet">R. Peris-Bonet</name></noRegion></country><country name="Grèce"><noRegion><name sortKey="Petridou, E" sort="Petridou, E" uniqKey="Petridou E" first="E." last="Petridou">E. Petridou</name></noRegion></country><country name="Slovénie"><noRegion><name sortKey="Pompe Kirn, V" sort="Pompe Kirn, V" uniqKey="Pompe Kirn V" first="V." last="Pompe-Kirn">V. Pompe-Kirn</name></noRegion></country><country name="Finlande"><noRegion><name sortKey="Pukkala, E" sort="Pukkala, E" uniqKey="Pukkala E" first="E." last="Pukkala">E. Pukkala</name></noRegion></country><country name="Estonie"><noRegion><name sortKey="Rahu, M" sort="Rahu, M" uniqKey="Rahu M" first="M." last="Rahu">M. Rahu</name></noRegion></country><country name="Danemark"><noRegion><name sortKey="Storm, H" sort="Storm, H" uniqKey="Storm H" first="H." last="Storm">H. Storm</name></noRegion></country><country name="Norvège"><region name="Trøndelag"><name sortKey="Vatten, L" sort="Vatten, L" uniqKey="Vatten L" first="L." last="Vatten">L. Vatten</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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