Affiliation: | a Research Division, the Warren Alpert Medical School of Brown University, Women & Infants' Hospital of Rhode Island, Brown University, Providence, RI b Division of Maternal-Fetal Medicine, the Warren Alpert Medical School of Brown University, Women & Infants' Hospital of Rhode Island, Brown University, Providence, RI c Department of Community Health, the Warren Alpert Medical School of Brown University, Women & Infants' Hospital of Rhode Island, Brown University, Providence, RI d Department of Obstetrics and Gynecology, the Warren Alpert Medical School of Brown University, Women & Infants' Hospital of Rhode Island, Brown University, Providence, RI |