Affiliation: | 1. Department of Urology, Fertility Center, CHA Gangnam Medical Center, Seoul, Korea;2. Department of Obstetrics and Gynecology, Fertility Center, CHA Gangnam Medical Center, Seoul, Korea;3. Department of Genetics, CHA University, Seoul, Korea;4. Department of Urology, CHA Bundang Medical Center, CHA University, Seongnam, Korea |