Universidade Estadual de Campinas (UNICAMP) - Department of Obstetrics and Gynaecology, World Health Organization (WHO) - UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, World Health Organization (WHO) - UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Centro Rosarino de Estudios Perinatales (CREP), Research Institute of Health Sciences (IRSS) - Kaya Health and Demographic Surveillance System (Kaya-HDSS), University of São Paulo (USP) - Ribeirão Preto Medical School, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, University of Oxford - National Perinatal Epidemiology Unit, University of Liverpool, University of Birmingham, Liverpool School of Tropical MedicineLiverpool School of Tropical Medicine - Department of Clinical SciencesWalimu, Aga Khan University - Department of Pathology and Laboratory Medicine, University of Malawi - Department of Obstetrics and Gynaecology, National School of Public HealthNational School of Public Health (ENSP), University of São Paulo (USP) - Ribeirão Preto Medical SchoolUniversity of São Paulo (USP) - Department of Social Medicine, Universidade Estadual de Campinas (UNICAMP) - Department of Obstetrics and Gynecology and Independent