<affiliation wicri:level="1"><nlm:affiliation>West German Cancer Center, Department of Medical Oncology, and German Cancer Consortium (DKTK), University Hospital Essen, Essen, Germany.</nlm:affiliation>
<country xml:lang="fr">Allemagne</country>
<wicri:regionArea>West German Cancer Center, Department of Medical Oncology, and German Cancer Consortium (DKTK), University Hospital Essen, Essen</wicri:regionArea>
<wicri:noRegion>Essen</wicri:noRegion>
<wicri:noRegion>Essen</wicri:noRegion>
<wicri:noRegion>Essen</wicri:noRegion>
</affiliation>