1. Department of Urology, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
2. Department of Urology, Institute of Health Sciences, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea.
3. The Korean Prostate & Voiding Health Association, Seoul, Korea.