<affiliation wicri:level="4"><nlm:aff id="I2">Department of OBGYN and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of OBGYN and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213</wicri:regionArea>
<placeName><region type="state">Pennsylvanie</region>
<settlement type="city">Pittsburgh</settlement>
</placeName>
<orgName type="university">Université de Pittsburgh</orgName>
</affiliation>