Lee K1, Lee Y2, Chung J W1, Lee S H3, Moon K H4, Jung H C5, Choi S6, Choo M7
1. Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, 2. Department of Urology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea, 3. Department of Urology, Hallym University College of Medicine, Chuncheon, Korea, 4. Department of Urology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea, 5. Department of Urology, College of Medicine, Yeungnam University, Daegu, Korea, 6. Department of Urology, Kosin University College of Medicine, Busan, Korea, 7. Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea