1. Population Health Sciences University of Bristol Bristol United Kingdom
2. Department of Infectious Disease Epidemiology London School of Hygiene and Tropical Medicine London United Kingdom
3. Department of Infectious Disease Epidemiology Imperial College London United Kingdom
4. St Michaels HospitalUniversity of Toronto Toronto Canada
5. Department of Epidemiology Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
6. London School of Hygiene and Tropical Medicine London United Kingdom
7. University of California San Francisco San Francisco CA USA
8. Equal International Washington DC USA
9. Perinatal HIV Research Unit Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
10. South African Medical Research Council Cape Town South Africa
11. TB HIV Care Cape Town South Africa
12. National Institute of Communicable Diseases Johannesburg South Africa
13. Research and Innovation Office North West University Potchefstroom South Africa