Affiliation: | 1. Department of Reproductive Endocrinology and Infertility, Stanford University School of Medicine, Stanford, California;2. Division of Reproductive Medicine, Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women''s Hospital and Harvard Medical School, Boston, Massachusetts;3. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts;4. Division of Adolescent and Young Adult Medicine, Department of Medicine, Boston Children''s Hospital and Harvard Medical School, Boston, Massachusetts;5. Department of Obstetrics, Gynecology, and Reproductive Biology, College of Human Medicine, Michigan State University, Grand Rapids, Michigan;6. Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts |