1. 1Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. 2German Lymphoma Alliance, Munich, Germany
3. 3Department of Hematology and Stem Cell Transplantation, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
4. 4Department of Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
5. 5Department of Medicine III – Hematology/Oncology, University Hospital, LMU Munich, Munich, Germany
6. 6Department of Medicine A, University Medical Center Münster, Münster, Germany
7. 7Department of Hematology and Oncology, Charité University Medicine, Berlin, Germany
8. 8Department of Internal Medicine II, University Medical Center Kiel, Kiel, Germany
9. 9German Stem Cell Transplant Registry (DRST), Ulm, Germany
10. 10Department of Hematology and Oncology, University Medical Center Tübingen, Tübingen, Germany
11. 11Department Medicine V, University of Heidelberg, Heidelberg, Germany