1. U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
2. Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD, USA
3. HJF Medical Research International, Mbeya, Tanzania
4. HJF Medical Research International, Kisumu, Kenya
5. HJF Medical Research International, Kericho, Kenya
6. Makerere University Walter Reed Project, Kampala, Uganda
7. HJF Medical Research International, Abuja, Nigeria