1. Institute of Transfusion Medicine and Gene Therapy Medical Center—University of Freiburg Freiburg Germany
2. Faculty of Medicine University of Freiburg Freiburg Germany
3. Institute of Transfusion Medicine and Immunology Heidelberg University, Medical Faculty Mannheim Mannheim Germany
4. German Red Cross Blood Service Baden‐Württemberg ‐ Hessen Mannheim Germany
5. Institute of Transfusion Medicine and Immunohematology German Red Cross Blood Service Baden‐Württemberg ‐ Hessen Baden‐Baden Germany
6. imusyn GmbH & Co. KG Hannover Germany
7. Institute for Clinical Transfusion Medicine and Immunogenetics German Red Cross Blood Service Baden‐Württemberg ‐ Hessen Ulm Germany
8. SYNLAB MVZ GmbH Leinfelden‐Echterdingen Germany