| Affiliation: | 1. Blood Systems Research Institute, , San Francisco, California;2. Puget Sound Blood Center, , Seattle, Washington;3. University of California, , Davis, California;4. National Institutes of Health, , Bethesda, Maryland;5. University of Southern California, , Los Angeles, California;6. Children's National Medical Center, , Washington, DC;7. Department of Laboratory Medicine, University of California, , San Francisco, California;8. Department of Medicine, University of California, , San Francisco, California;9. University of Washington School of Medicine, , Seattle, Washington |
