1. Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil2Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
2. Nuffield Department of Obstetrics & Gynaecology and Oxford Maternal & Perinatal Health Institute, Green Templeton College, University of Oxford, Oxford, England
3. Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
4. Department of Engineering Science, University of Oxford, Oxford, England
5. School of Public Health, Peking University, Beijing, China
6. Department of Obstetrics and Gynecology, Ohio State University, Columbus, Ohio
7. Department of Obstetrics and Gynecology, Columbia University, New York, New York
8. Department of Pediatrics and Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
9. Faculty of Health Sciences, Aga Khan University, Nairobi, Kenya
10. Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland11Perinatology Research Branch, Eunice Kennedy Shriver
11. Department of Family and Community Health, Ministry of Health, Muscat, Sultanate of Oman
12. Dipartimento di Scienze Pediatriche e dell’Adolescenza, Cattedradi Neonatologia, Università degli Studi di Torino, Torino, Italy
13. University of Washington School of Medicine, Seattle
14. Centre for Statistics in Medicine, University of Oxford Botnar Research Centre, Oxford, England
15. Nuffield Department of Obstetrics & Gynaecology and Oxford Maternal & Perinatal Health Institute, Green Templeton College, University of Oxford, Oxford, England15Centre for Statistics in Medicine, University of Oxford Botnar Research Centre, Oxford, Engla
16. Nagpur INTERGROWTH-21st Research Centre, Ketkar Hospital, Nagpur, India
17. Center for Perinatal Studies, Swedish Medical Center, Seattle, Washington
18. Center of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan19Center for Global Child Health, Hospital for Sick Children, Toronto, Ontario, Canada