1. Gynecologic Cancer Center, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea
2. Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam 13620, Republic of Korea
3. Department of Obstetrics and Gynecology, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Republic of Korea
4. Department of Obstetrics and Gynecology, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 14662, Republic of Korea
5. Department of Obstetrics and Gynecology, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon 22711, Republic of Korea
6. Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
7. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon 51353, Republic of Korea
8. Department of Obstetrics and Gynecology, Inha University Hospital, Inha University College of Medicine, Incheon 22332, Republic of Korea
9. Department of Obstetrics and Gynecology, Korea University Ansan Hospital, Korea University School of Medicine, Ansan 15355, Republic of Korea
10. Department of Obstetrics and Gynecology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang 10380, Republic of Korea