Kamuzu University of Health Sciences, Institute of Tropical Medicine, HERD International, Adroit Consult International, Karolinska Institutet - Department of Global Public Health, Vrije Universiteit Brussel (VUB), University of Dschang, Institute of Tropical Medicine, Research Institute of Health Sciences (IRSS) - Kaya Health and Demographic Surveillance System (Kaya-HDSS), University of Lubumbashi, Independent, University of Geneva - Institute of Global Health, Muhimbili University of Health and Allied Sciences, Gamal Abdel Nasser University of Conakry, Institute of Tropical Medicine, Institute of Tropical Medicine, Institute of Tropical Medicine, London School of Hygiene & Tropical Medicine - Department of Clinical Research, University of Toronto - Dalla Lana School of Public Health, Institute of Tropical Medicine, Kenya Medical Research Institute (KEMRI) - Kemri-Wellcome Trust Research Programme, African Population and Health Research Center (APHRC), Independent, Zambart, Government of the Republic of Rwanda - Ministry of Health, Rwanda, Gulu University, Guttmacher Institute - Vital Strategies, Muhimbili University of Health and Allied Sciences - Department of Obstetrics and Gynaecology, University of Lagos and Institute of Tropical Medicine