1. Harvard University Center for the Environment, Harvard University, Cambridge, Massachusetts, USA
2. Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
3. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
4. Division of Maternal–Fetal Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA