1 University of Colorado School of Medicine, 12631 East 17th Avenue, AO1, Room 4010, Aurora, CO 80045, USA. Electronic address: Nanette.Santoro@ucdenver.edu.
2 Yale University School of Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, 333 Cedar Street, New Haven, CT 06510, USA. Electronic address: lubna.pal@yale.edu.