1. Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
2. Department of Obstetrics and Gynecology, Chungnam National University College of Medicine, Daejeon, Republic of Korea
3. Department of Transdisciplinary Medicine, Seoul National University Hospital, Seoul, Republic of Korea
4. Department of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
5. Department of Medical Education, Seoul National University College of Medicine, Seoul, Republic of Korea