1. Department of Pathology, Microbiology and Immunology, Division of Transfusion Medicine Vanderbilt University Medical Center Nashville Tennessee USA
2. Department of Pediatrics, Division of Hematology/Oncology Vanderbilt University Medical Center Nashville Tennessee USA
3. Cancer and Blood Disorders Institute, Blood Bank and Transfusion Medicine Johns Hopkins All Children's Hospital St Petersburg Florida USA
4. Department of Oncology Johns Hopkins University School of Medicine Baltimore Maryland USA
5. American Red Cross, Biomedical Services Headquarters Washington DC USA
6. Trauma and Transfusion Medicine Research Center, Department of Surgery University of Pittsburgh Pittsburgh Pennsylvania USA
7. Department of Critical Care Medicine University of Pittsburgh Pittsburgh Pennsylvania USA
8. Department of Pathology University of Pittsburgh Pittsburgh Pennsylvania USA