<affiliation wicri:level="1"><nlm:aff id="A1">Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda MD, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda MD</wicri:regionArea>
<wicri:noRegion>Bethesda MD</wicri:noRegion>
</affiliation>