1. Gender & Health Research Unit, South African Medical Research Council, Cape Town, South Africa
2. School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
3. Biostatistics Unit, South African Medical Research Council, Cape Town, South Africa
4. Anxiety and Stress Disorder Unit, University of Stellenbosch University of Stellenbosch, Cape Town, South Africa
5. Non-Communicable Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
6. Alcohol, Tobacco and Other Drug Research Unit, South African Medical Research, Council, Cape Town, South Africa
7. Division of Addiction Psychiatry, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
8. Department of Sexual and Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland
9. School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa