1. Department of Obstetrics and Gynecology Korea University Guro Hospital Seoul South Korea
2. Department of Obstetrics and Gynecology School of Medicine, Kangwon National University Gangwon‐do South Korea
3. National Evidence‐based Healthcare Collaborating Agency (NECA) Seoul South Korea
4. Department of Obstetrics and Gynecology CHA Gangnam Medical Center Seoul South Korea
5. Department of Obstetrics and Gynecology Korea University Anam Hospital Seoul South Korea
6. Department of Obstetrics and Gynecology Keimyung University Dongsan Medical Center Daegu South Korea
7. Department of Obstetrics and Gynecology Konkuk University Hospital Seoul South Korea
8. Department of Obstetrics and Gynecology Chung Nam National University Hospital Daejeon South Korea
9. Department of Obstetrics and Gynecology Seoul National University Hospital Seoul South Korea
10. Department of Obstetrics and Gynecology Catholic University of Korea Seoul St. Mary's Hospital Seoul South Korea
11. Department of Obstetrics and Gynecology Yonsei University Severance Hospital Seoul South Korea
12. Department of Obstetrics and Gynecology Dankook University, Dankook University Hospital Yongin South Korea
13. Department of Obstetrics and Gynecology Kyungpook National University Chilgok Hospital Daegu South Korea
14. Comprehensive Gynecologic Cancer Center CHA Bundang Medical Center Seongnam South Korea
15. Department of Obstetrics and Gynecology Samsung Medical Center Seoul South Korea
16. Department of Obstetrics and Gynecology South Korea University Ansan Hospital Ansan South Korea