1. Haematology/Oncology Group Practice; Koblenz Germany
2. Department of Internal Medicine III HELIOS Klinikum; Bad Saarow Germany
3. Haematology/Oncology Group Practice; Halle Germany
4. Department of Haematology/Oncology Klinikum; Frankfurt/Oder Germany
5. Haematology/Oncology Group Practice; Neuss Germany
6. Haematology/Oncology Group Practice; Oldenburg Germany
7. Haematology/Oncology Group Practice; Köln Germany
8. Haematology/Oncology Practice; Weiden Germany
9. Department I of Internal Medicine; Centre for Integrated Oncology (CIO) Köln-Bonn; University of Cologne; Cologne Germany