1. Laboratory Medicine and Pathology, University of Minnesota Medical School; Minneapolis Minnesota
2. Mid-American Blood Service Division; American Red Cross North-Central Region; St Paul Minnesota
3. Innovative Blood Resources, Hennepin County Medical Center and Children's Hospitals and Clinics of Minnesota; Minneapolis Minnesota
4. Pathology and Laboratory Medicine, Emory University School of Medicine; Atlanta Georgia
5. Blood Bank, The Johns Hopkins University School of Medicine; Bethesda Maryland