1. Gynecologic Oncology Center, Department of Obstetrics and GynecologyCHA University Ilsan Medical CenterGoyang‐si Gyeonggi‐do Republic of Korea
2. Department of Obstetrics and GynecologyKorea University College of MedicineSeoul Republic of Korea
3. Department of Obstetrics and GynecologyHanyang University Guri Hospital, Hanyang University College of MedicineGuri‐si Gyeonggi‐do Republic of Korea