1. Department of Public Health and Pediatrics, University of Turin, Turin, Italy
2. Nuffield Department of Obstetrics & Gynaecology
3. Oxford Maternal & Perinatal Health Institute, Green Templeton College, University of Oxford, Oxford, United Kingdom
4. Center of Excellence in Women & Child Health, The Aga Khan University, Karachi, Pakistan
5. Center for Global Child Health, Hospital for Sick Children, Toronto, Canada
6. Centre for Statistics in Medicine, University of Oxford Botnar Research Centre, Oxford, United Kingdom
7. Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD
8. National Institutes of Health/Department of Health and Human Services, Detroit, MI