1. Department of Internal Medicine III, University Hospital of Ulm, Ulm, Germany;
2. Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service, Baden Wuerttemberg- Hessian Ulm, Ulm, Germany;
3. Institute of Transfusion Medicine, University Hospital of Ulm, Ulm, Germany;
4. Department of Internal Medicine, Alb-Fils Kliniken, Göppingen, Germany;
5. Department of Internal Medicine III, Municipal Hospital of Karlsruhe, Karlsruhe, Germany;
6. Vancouver General Hospital, L/BMT Program of British Columbia, Vancouver, Canada;
7. Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, Canada