1. Department of Psychology University of Johannesburg Johannesburg South Africa
2. Alcohol, Tobacco and Other Drug Research Unit South African Medical Research Council Pretoria South Africa
3. School of Public Health and Family Medicine University of Cape Town Cape Town South Africa
4. School of Public Health University of the Witwatersrand Johannesburg South Africa
5. Gender and Health Research Unit South African Medical Research Council Pretoria South Africa
6. School of Public Health and Health Systems University of the Pretoria Gauteng South Africa
7. Institute for Therapy and Health Research Kiel Germany
8. Department of Sociology and Anthropology Nnamdi Azikiwe University Awka Nigeria
9. Mwanza Intervention Trials Unit Mwanza Tanzania
10. Department of Infectious Diseases Epidemiology London School of Hygiene and Tropical Medicine London UK