1. Department of Obstetrics and Gynecology, Boston University School of Medicine, Boston, Massachusetts, USA
2. Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
3. Exposure, Epidemiology, and Risk Program, Department of Environmental Health, and
4. Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
5. Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
6. Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA