[1] AI Center,Department of Obstetrics and Gynecology
[2] Korea University College of Medicine,Department of Obstetrics and Gynecology
[3] Korea University College of Medicine,Department of Preventive Medicine
[4] Kangwon National University Hospital,Department of Obstetrics and Gynecology
[5] Kangwon National University School of Medicine,Department of Obstetrics and Gynecology
[6] Kangwon National University School of Medicine,undefined
[7] Kangwon,undefined
[8] Research Institute of Medical Science,undefined
[9] Konkuk University School of Medicine,undefined
[10] Ewha Medical Institute,undefined
[11] Ewha Medical Center,undefined
[12] Ewha Womans University College of Medicine,undefined