1. Department of International Public Health Liverpool School of Tropical Medicine Liverpool UK
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. Nuffield Department of Women's & Reproductive Health and Oxford Maternal and Perinatal Health Institute (OMPHI) University of Oxford Oxford UK