1 Division of Epidemiology and BiostatisticsDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ; Environmental and Occupational Health Sciences Institute, Rutgers Robert Wood Johnson Medical School, Piscataway, NJ. Electronic address: [email protected].
2 Division of Maternal-Fetal MedicineDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ.
3 Department of Obstetrics and Gynecology, NYU Winthrop Hospital, NYU Long Island School of Medicine, Mineola, NY.