1. U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD;
2. Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD;
3. ICAP at Columbia University, Mailman School of Public Health, New York;
4. Makerere University Walter Reed Project, Kampala, Uganda;
5. HJF Medical Research International, Abuja, Nigeria;
6. HJF Medical Research International, Mbeya, Tanzania;
7. U.S. Army Medical Research Directorate—Africa, Kisumu, Kenya;
8. HJF Medical Research International, Kisumu, Kenya; and
9. HJF Medical Research International, Kericho, Kenya.