1. Department of Interdisciplinary Programme in Biomedical Science, Soonchunhyang University Graduate School, Asan, Korea
2. Department of Obstetrics and Gynecology, Soonchunhyang University College of Medicine, Bucheon, Korea
3. Department of Urology, Soonchunhyang University Buchoen Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea