1. FHI 360, Durham, North Carolina, USA.
2. Effective Care Research Unit, Department of Obstetrics and Gynaecology, University of Witwatersrand/Fort Hare/Walter Sisulu, East London, South Africa.
3. Department of Obstetrics and Gynaecology, University of Botswana, Gaborone, Botswana.
4. Department of Global Health, University of Washington, Seattle, USA.
5. Wits Reproductive Health and HIV Institute (Wits RHI), University of Witswatersrand, Johannesburg, South Africa.
6. Mailman School of Public Health, ICAP at Columbia University, New York, USA.
7. Emavundleni Research Center, Capetown, South Africa.
8. KEMRI-RCTP Study Center, Kisumu, Kenya.
9. The Aurum Institute, Johannesburg, South Africa.
10. Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut, USA.
11. Faculty of Health Sciences, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
12. MatCH Research Unit (MRU), Faculty of Health Sciences, Department of Obstetrics and Gynecology, University of the Witwatersrand, Durban, South Africa.
13. Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.
14. Setshaba Research Center, Soshanguve, South Africa.