Johannesburg Site, Johannesburg, South Africa
Boston University School of Medicine, Boston, Massachusetts, United States
University of Pennsylvania, Philadelphia, Pennsylvania, United States
Trustees of University of Pennsylvania (Philadelphia VA Medical Center), Philadelphia, Pennsylvania, United States
Dallas VA Research Corporation, Dallas, Texas, United States
Boston Medical Center, Boston, Massachusetts, United States
Mildmay Uganda, Kampala, Uganda
University Teaching Hospital, Lusaka, Zambia
Yale University School of Medicine, New Haven, Connecticut, United States
MGH Chelsea, Chelsea, Massachusetts, United States
Boston Medical Center, Boston, Massachusetts, United States
HIV Clinic, Johannesburg, Gauteng, South Africa