<affiliation wicri:level="4"><nlm:aff id="A1">Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA</wicri:regionArea>
<placeName><region type="state">Pennsylvanie</region>
<settlement type="city">Pittsburgh</settlement>
</placeName>
<orgName type="university">Université de Pittsburgh</orgName>
</affiliation>