Yang S1, Hong W S1, Lee J M1, Kim T1, Chung H1, Kim H S1, Kim H2, Na Y G2, Kim H3, Kim Y S4
1. the Department of Urology, College of Medicine, Konkuk University, Chungju, Korea, 2. the Department of Urology, Chungnam National University College of Medicine, Daejeon, Korea, 3. the Department of Urology, Dankook University College of Medicine, Cheonan, Korea, 4. Ilsan Hospital, National Health Insurance Corporation, Ilsan, Korea