Affiliation: | a Boston IVF, Waltham, Massachusetts b Division of Reproductive Endocrinology and Infertility, Beth Israel Deaconess Medical Center, Boston, Massachusetts c Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts d Department of Medicine and Endocrinology, Beth Israel Deaconess Medical Center, Boston, Massachusetts e Harvard Medical School, Boston, Massachusetts |