Affiliation: | 1. American Red Cross Blood Services, New England Region, , Dedham, Massachusetts;2. AABB, , Bethesda, Maryland;3. Westat, Inc., , Rockville, Maryland;4. National Heart, Lung, and Blood Institute, , Bethesda, Maryland;5. Emory University Program in Sleep, , Atlanta, Georgia;6. Institute for Transfusion Medicine, , Pittsburgh, Pennsylvania;7. BloodCenter of Wisconsin, , Milwaukee, Wisconsin;8. American Red Cross Blood Services, Connecticut Region, , Farmington, Connecticut |