University of the Witwatersrand - MatCH Research Unit (MRU), University of Washington - Department of Global Health, University of the Witwatersrand - MatCH Research Unit (MRU), University of the Witwatersrand - MatCH Research Unit (MRU), University of Washington - Department of Global Health, FHI 360, University of the Witwatersrand/Fort Hare - Effective Care Research Unit, World Health Organization - UNDP-UNFPA-UNICEF-WHO-World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), University of Washington - Department of Global Health, University of the Witwatersrand - Wits Reproductive Health and HIV Institute (Wits RHI), Setshaba Research Centre, Emavundleni Research Centre, University of Washington - Department of Global Health and University of the Witwatersrand - MatCH Research Unit (MRU)