1 Department of Transfusion Medicine and Cell Therapy, Medical University of Vienna, Vienna, Austria.
2 Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland, Hematology, University Hospital Basel, University of Basel, Basel, Switzerland.
3 Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service Baden-Württemberg-Hessen and University Hospital Ulm and Institute of Transfusion Medicine, University of Ulm, Ulm, Germany.