1. Baxter Innovation GmbH, Vienna, Austria;
2. Institute for Experimental Hematology and Transfusion Medicine, Bonn, Germany;
3. Department of Pediatrics, Medical University of Vienna, Vienna, Austria;
4. Institute of Hematology and Transfusion Medicine, Warsaw, Poland; and
5. Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany