1. Vitalant Research Institute (previously Blood Systems Research Institute)University of San Francisco San Francisco California
2. Department of Laboratory MedicineUniversity of San Francisco San Francisco California
3. Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute Atlanta Georgia
4. Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine Atlanta Georgia
5. RTI International Atlanta Georgia
6. RTI International Rockville Maryland
7. Blood Research and Medical Sciences InstitutesBlood Center of Wisconsin Milwaukee Wisconsin
8. The Institute for Transfusion Medicine Pittsburgh Pennsylvania
9. American Red Cross Farmington Connecticut
10. Department of PathologyUniversity of Pittsburgh Pittsburgh Pennsylvania
11. University of British Columbia Victoria British Columbia Canada