1. Comprehensive Gynecologic Cancer Center, Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
2. Center for Uterine Cancer, National Cancer Center, Goyang, Korea.
3. Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
4. Department of Obstetrics and Gynecology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea.
5. Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
6. Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea.
7. Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.