1. Department of Medicine, Hawaii Center for AIDS, University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii.
2. Division of Biostatistics, Department of Preventive Medicine, Keck School of Medicine of USC, Los Angeles, California.
3. Queen's Medical Center, Honolulu, Hawaii.
4. Blood Systems Research Institute, San Francisco, California.
5. Department of Laboratory Medicine, University of California, San Francisco, California.
6. Department of Medicine, University of California, San Francisco, California.
7. Department of Tropical Medicine, University of Hawaii John A. Burns School of Medicine, Honolulu, Hawaii.