1. Walter Reed Army Institute of Research, U.S. Military HIV Research Program, Bethesda, Maryland.
2. U.S. Military HIV Research Program, Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland.
3. Office of the U.S. Army Surgeon General, Falls Church, Virginia.
4. Armed Forces Health Surveillance Center, Silver Spring, Maryland.
5. U.S. Army Public Health Command, formerly the U.S. Army Center for Health Promotion and Preventive Medicine (USACHPPM), Aberdeen Proving Ground, Maryland.