1. Departments of Obstetrics and Gynecology and Reproductive Medicine, State University of New York at Stony Brook, Stony Brook, New York; Department of Obstetrics and Gynecology, Harvard Medical School, Boston, Massachusetts
2. Department of Obstetrics and Gynecology, School of Medicine, SUNY at Stony Brook, Stony Brook, NY 11794-8091; Departments of Obstetrics and Gynecology and Reproductive Medicine, State University of New York at Stony Brook, Stony Brook, New York; Department of Obstetrics and Gynecology, Harvard Medical School, Boston, Massachusetts