<affiliation wicri:level="4"><nlm:affiliation>Department of Health Policy and Administration, The Pennsylvania State University, University Park 16802-6500, USA. pkemper@psu.edu</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Health Policy and Administration, The Pennsylvania State University, University Park 16802-6500</wicri:regionArea>
<orgName type="university">Université d'État de Pennsylvanie</orgName>
<placeName><settlement type="city">University Park (Pennsylvanie)</settlement>
<region type="state">Pennsylvanie</region>
</placeName>
</affiliation>