1. Institute for HIV-1 Research, University Hospital, University Duisburg-Essen, Essen, Germany
2. U.S. Military HIV-1 Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
3. Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
4. Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
5. Department of Retrovirology, U.S. Army Medical Component, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
6. Kenya Medical Research Institute/Walter Reed Project, Kericho, Kenya
7. Walter Reed Program—Tanzania, Mbeya, Tanzania
8. Makerere University Walter Reed Project, Kampala, Uganda
9. Massachusetts General Hospital, Boston, Massachusetts, USA