1. Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
2. UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Sexual and Reproductive Health and Research; World Health Organization; Geneva Switzerland
3. Effective Care Research Unit, University of the Witwatersrand/Fort Hare, East London, South Africa; Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa; and; University of Botswana; Gaborone Botswana