Affiliation: | a Division of Epidemiology, Statistics and Prevention Research, National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD b Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Oxford, England, UK c Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Bank Special Programme of Research, World Health Organization, Geneva, Switzerland d Department of Obstetrics and Gynaecology, Assiut University Hospital, Assiut, Egypt e Department of Obstetrics and Gynecology, Christian Medical College, Vellore, India f Instituto de Investigación Nutricional, Lima, Peru g Department of Obstetrics and Gynaecology, Government Medical College and Hospital, Nagpur, India h Hung Vuong Hospital, Ho Chi Minh City, Vietnam i Centro Rosarino de Estudios Perinatales, Rosario, Argentina j Departments of Obstetrics and Gynecology and Medicine, Pritzker School of Medicine, University of Chicago, Chicago, IL. |