1. Institute of Clinical Transfusion Medicine and Immunogenetics Ulm German Red Cross Blood Transfusion Service Baden Wuerttemberg‐Hessen, and University Hospital Ulm Ulm Germany
2. Institute of Transfusion Medicine University of Ulm Ulm Germany
3. ZKRD – Zentrales Knochenmarkspender‐Register für Deutschland German National Bone Marrow Donor Registry Ulm Germany