<affiliation wicri:level="4"><nlm:aff id="A3">Ethel Percy Andrus Gerontology Center of the Davis School of Gerontology; and Division of Molecular & Computational Biology, Department of Biological Sciences of the College of Letters, Arts & Sciences, the University of Southern California, Los Angeles, California 90089-0191, U.S.A.</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Ethel Percy Andrus Gerontology Center of the Davis School of Gerontology; and Division of Molecular & Computational Biology, Department of Biological Sciences of the College of Letters, Arts & Sciences, the University of Southern California, Los Angeles, California 90089-0191</wicri:regionArea>
<orgName type="university">Université de Californie du Sud</orgName>
<placeName><settlement type="city">Los Angeles</settlement>
<region type="state">Californie</region>
</placeName>
</affiliation>