1. Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service, Baden Wuerttemberg – Hessen, Ulm University Hospital of Ulm Ulm Germany
2. Institute of Transfusion Medicine University of Ulm Ulm Germany
3. Department of Hematology/Oncology University of Leipzig Leipzig Germany
4. Department of Internal Medicine III University of Ulm Ulm Germany
5. Department of Medicine III Johannes Gutenberg‐University of Mainz Mainz Germany
6. Section for Stem Cell Transplantation and Immunotherapy, Department of Medicine II Christian Albrechts University Kiel Germany
7. Department of Stem Cell Transplantation University Hospital Hamburg‐Eppendorf Hamburg Germany
8. Department of Hematology/Oncology Georg‐August‐University Göttingen Göttingen Germany
9. Department of Internal Medicine II University Hospital Würzburg Würzburg Germany
10. Department Internal Medicine I Universitätsklinikum des Saarlandes Homburg Germany
11. Medical Clinic 5: Hematology, Oncology Nuremberg Hospital Nuremberg Germany
12. Department of Medicine III, Hematology/Oncology/Palliative Care Rostock University Medical Center Rostock Germany
13. Department of Oncology and Hematology Klinikum Oldenburg, University Clinic Oldenburg Germany
14. Hematology/Oncology Evangelic Clinic Essen‐Werden Essen Germany
15. 2nd Department of Internal Medicine, Oncology and Hematology Robert Bosch Hospital Stuttgart Germany
16. Hematology/Oncology Klinikum Bremen‐Mitte Bremen Germany
17. Universitätsmedizin Mannheim Med. Klinik III Mannheim Germany
18. Medizinische Klinik III Städtisches Klinikum Karlsruhe Germany
19. DRST ‐ Deutsches Register für Stammzelltransplantation, German Registry for Stem Cell Transplantation Ulm Germany
20. ZKRD – Zentrales Knochenmarkspender‐Register für Deutschland German National Bone Marrow Donor Registry Ulm Germany