1. Department of Urology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.
2. Department of Urology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea.
3. Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea.
4. Catholic Integrative Medicine Research Institute, College of Medicine, The Catholic University of Korea, Korea.
5. Department of Urology, Korea University College of Medicine, Seoul, Korea.