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