1. Department of Obstetrics and Gynecology, School of Medicine, University of Missouri Kansas City, Kansas City, MO 64108, USA
2. Division of Reproductive Medicine, Department of Obstetrics and Gynecology, John Peter Smith Hospital, Fort Worth, TX 76104, USA
3. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, John Peter Smith Hospital, Fort Worth, TX 76104, USA