1 Department of International Health, Johns Hopkins School of Public Health, Baltimore, MD, USA. Electronic address: esacks@jhu.edu.
2 UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland.
3 Cellule de Recherche en Sante de la Reproduction en Guinee, Conakry, Guinea.
4 Department of Obstetrics and Gynaecology, Faculty of Clinical Sciences, University of Medical Sciences, Ondo University of Medical Sciences Teaching Hospital, Akure, Nigeria.
5 Department of Obstetrics and Gynaecology, School of Medicine and Dentistry, University of Ghana, Accra, Ghana.
6 Department of Medical Research, Ministry of Health and Sports, Yangon, Myanmar.