1. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
2. Mississauga Academy of Medicine, University of Toronto Mississauga, Mississauga, Canada
3. Cardiovascular Epidemiology Research Unit, Beth Israel Deaconess Medical Center, Boston, Massachusetts
4. Universidad Peruana de Ciencias Aplicadas, Lima, Peru
5. Asociación Civil Proyectos en Salud , Lima, Peru
6. Department of Anesthesiology, Pharmacology and Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
7. Department of Obstetrics and Gynecology, San Marcos University, Hospital Madre-Nino San Bartolome, Lima, Peru
8. Department of Obstetrics and Gynecology, San Marcos University, Hospital Nacional Hipólito Unanue, Lima, Peru
9. Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
10. Department of Obstetrics and Gynecology, University of Michigan Health System, University of Michigan, Ann Arbor, Michigan
11. Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, Michigan
12. Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan
13. Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, New York
14. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York