1. Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
2. Department of Behavioral & Social Sciences, Brown University School of Public Health, Providence, RI, USA
3. International Health Institute, Brown University School of Public Health, Providence, RI, USA
4. HIV Center for Clinical & Behavioral Studies, New York State Psychiatric Institute, Columbia University, New York, NY, USA
5. Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
6. Department of Psychology, Stellenbosch University, Stellenbosch, South Africa
7. ICAP at Columbia University, Mailman School of Public Health, Columbia University, New York, NY, USA
8. Department of Pediatrics, Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, USA
9. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA