1. Department of Urology, Shiga University of Medical Science, Otsu, Shiga 520‑2192, Japan
2. Department of Urology, Shiga General Hospital, Moriyama, Shiga 524‑8524, Japan
3. Department of Urology, Japanese Red Cross Otsu Hospital, Otsu, Shiga 520‑8511, Japan
4. Department of Urology, Otsu City Hospital, Otsu, Shiga 520‑0804, Japan
5. Department of Urology, Kohka Public Hospital, Koka, Shiga 528‑0074, Japan
6. Department of Urology, Omihachiman Community Medical Center, Omihachiman, Shiga 523‑0082, Japan
7. Department of Urology, Nagahama City Hospital, Nagahama, Shiga 526‑8580, Japan
8. Department of Urology, Kusatsu General Hospital, Kusatsu, Shiga 525‑8585, Japan
9. Department of Urology, Hino Memorial Hospital, Hino, Shiga 529‑1642, Japan
10. Department of Urology, Toyosato Hospital, Toyosato, Shiga 529‑1168, Japan
11. Department of Urology, JCHO Shiga Hospital, Otsu, Shiga 520‑0846, Japan
12. Department of Urology, National Hospital Organization Higashi‑ohmi General Medical Center, Higashiomi, Shiga 527‑8505, Japan
13. Department of Urology, Nagahama City Kohoku Hospital, Nagahama, Shiga 529‑0493, Japan