<affiliation wicri:level="1"><nlm:affiliation>German Hodgkin Study Group (GHSG), Department of Internal Medicine 1, University Hospital of Cologne, Cologne, Germany. Electronic address: a.engert@uni-koeln.de.</nlm:affiliation>
<country xml:lang="fr">Allemagne</country>
<wicri:regionArea>German Hodgkin Study Group (GHSG), Department of Internal Medicine 1, University Hospital of Cologne, Cologne</wicri:regionArea>
<wicri:noRegion>Cologne</wicri:noRegion>
<wicri:noRegion>Cologne</wicri:noRegion>
<wicri:noRegion>Cologne</wicri:noRegion>
</affiliation>