1. South African Medical Research Council; Health Systems Research Unit; Cape Town Western Cape South Africa
2. Stellenbosch University; Department of Psychiatry; Cape Town South Africa
3. University of Warwick; Warwick Medical School; Coventry UK
4. Brown University; School of Public Health; Providence Rhode Island USA
5. University of the Witwatersrand; Centre for Health Policy, School of Public Health, Faculty of Health Sciences; Johannesburg South Africa
6. Stellenbosch University; Institute for Life Course Health Research, Department of Global Health; Cape Town South Africa
7. Queens University; School of Nursing and Midwifery; Belfast UK
8. University of Cape Town; Health Policy and Systems Division, School of Public Health and Family Medicine; Cape Town Western Cape South Africa 7925