1 Boston IVF, Waltham, MA; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA. Electronic address: qheyward@bostonivf.com.
2 Boston IVF, Waltham, MA; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA.
3 Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.