1. Myunggok Medical Research Institute Konyang University College of Medicine Daejeon Republic of Korea
2. I‐Dream Clinic Department of Obstetrics and Gynecology MizMedi Hospital Seoul Republic of Korea
3. Department of Obstetrics and Gynecology Konyang University College of Medicine Daejeon Republic of Korea
4. Department of Obstetrics and Gynecology Keimyung University College of Medicine Daegu Republic of Korea
5. Department of Obstetrics and Gynecology Cha Gangnam Medical Center Seoul Republic of Korea
6. Department of Obstetrics and Gynecology Chungnam National University School of Medicine Daejeon Republic of Korea