1. Department of Urology National Hospital Organization Shikoku Cancer Center Matsuyama Japan
2. Division of Clinical Biostatistics, Section of Cancer Prevention and Epidemiology, Clinical Research Center National Hospital Organization Shikoku Cancer Center Matsuyama Japan
3. Department of Urology Matsuyama Red Cross Hospital Matsuyama Japan
4. Department of Urology Ehime Prefectural Central Hospital Matsuyama Japan
5. Department of Urology Sumitomo Besshi Hospital Niihama Japan
6. Department of Urology Uwajima City Hospital Uwajima Japan
7. Department of Urology Yawatahama City General Hospital Yawatahama Japan
8. Department of Urology Saiseikai Matsuyama Hospital Matsuyama Japan
9. Department of Urology Jyuzen General Hospital Niihama Japan
10. Department of Urology Ehime University Toon Japan