1. Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, and
2. Institute of Cell and Molecular Pathology, Hannover Medical School, Hannover;
3. Department of Internal Medicine III, University of Frankfurt, Frankfurt;
4. Department of Hematology-Oncology, University of Freiburg Medical Center, Freiburg;
5. Department of Hematology/Oncology, Ev. Krankenhaus Essen-Werden, Essen;
6. Department of Internal Medicine II, University of Tübingen, Tübingen;
7. Department of Hematology and Oncology, Klinikum Augsburg, Augsburg;
8. Department of Hematology, Oncology and Nephrology, HELIOS Klinikum Wuppertal, Wuppertal;
9. Department of Medicine II, Oncological Center, Hubertus Wald University Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg;
10. Department of Internal Medicine III, Krankenhaus Siloah, Hannover; and
11. Department of Internal Medicine V, Klinikum Lüdenscheid, Germany