1. Klinikum Nord; Medizinische Klinik 5-Schwerpunkt Onkologie/Haematologie; Prof.-Ernst-Nathan-Str. 1 Nuernberg Germany 90340
2. Paracelsus Medical University, Klinikum Nuernberg; Department of Internal Medicine, Division of Oncology and Hematology; Prof.-Ernst-Nathan-Str. 1 Nuernberg Germany D-90419
3. University of Bern; Institute of Social and Preventive Medicine; Finkelhubelweg11 Bern Switzerland 3012
4. Paracelsus Medical University, Klinikum Nuremberg; Department of Internal Medicine, Division of Oncology and Hematology; Prof.-Ernst-Nathan-Str. 1 Nuremberg Germany D-90419