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.