Affiliation: | Department of Obstetrics and Gynecology, MedStar Washington Hospital Center, Georgetown University School of Medicine, 106 Irving Street, Northwest, Suite 405 South, Washington, DC 20010, USA;Department of Obstetrics and Gynecology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53715, USA;Department of Obstetrics and Gynecology, Albany Medical College, Albany, NY 12208, USA |