1. 1 Division of Transfusion Medicine, Mayo Clinic, Rochester, MN
2. 2 Department of Pathology, Duke University School of Medicine, Durham, NC
3. 3 Medical Affairs, Vitalant, Scottsdale, AZ
4. 4 Center for Transfusion and Cellular Therapies, Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA