1. Vitalant Research Institute San Francisco California USA
2. Department of Laboratory Medicine University of California San Francisco San Francisco California USA
3. U.S. Food and Drug Administration, Center for Biologics Evaluation and Research Silver Spring Maryland USA
4. American Red Cross, Scientific Affairs Rockville Maryland USA
5. American Red Cross, Scientific Affairs Gaithersburg Maryland USA
6. OneBlood St. Petersburg Florida USA
7. Stanford Blood Center & Stanford University Palo Alto California USA
8. U.S. Centers for Disease Control and Prevention, HIV Research Branch, Division of HIV Prevention Atlanta Georgia USA