<affiliation wicri:level="2"><nlm:affiliation>*Department of Medicine, University of Michigan, Ann Arbor, MI †Center for Sickle Cell Disease, Howard University ‡Department of Pediatrics, Children's National Medical Center, Washington, DC §Hematology Branch, National Heart, Lung and Blood Institute, Bethesda, MD ∥Department of Medicine, University of Pittsburgh, Pittsburgh, PA ¶Sickle Cell Center, University of Illinois, Chicago, IL.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Illinois</region>
</placeName>
<wicri:cityArea>*Department of Medicine, University of Michigan, Ann Arbor, MI †Center for Sickle Cell Disease, Howard University ‡Department of Pediatrics, Children's National Medical Center, Washington, DC §Hematology Branch, National Heart, Lung and Blood Institute, Bethesda, MD ∥Department of Medicine, University of Pittsburgh, Pittsburgh, PA ¶Sickle Cell Center, University of Illinois, Chicago</wicri:cityArea>
</affiliation>