| Affiliation: | 1. Department of Urology, National Health Insurance Service Ilsan Hospital, Yonsei University College of Medicine, Goyang, Korea;2. Department of Urology, Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea;3. Department of Urology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea;4. Department of Urology, Catholic University of Daegu School of Medicine, Daegu, Korea;5. Department of Urology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Gwangju, Korea;6. Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea;g Department of Urology, Ajou University School of Medicine, Suwon, Korea;h Department of Urology, Veterans Health Service Medical Center, Seoul, Korea |
