Department of Obstetrics and Gynecology, Massachusetts General Hospital (M.A.C., T.S.F., K.E.J., A.J.K.); Harvard Medical School (M.A.C., T.S.F., K.E.J., A.J.K.), Boston, MA; New York–Presbyterian Hospital, Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY (A.M.); and Department of Obstetrics and Gynecology, UC San Diego Health, San Diego, CA (C.G.-B.)