1. Department of Urology; Tokyo Medical and Dental University Graduate School; Tokyo Japan
2. Department of Urology; National Cancer Centre Hospital East; Chiba Japan
3. Department of Urology; East Tokyo Metropolitan Hospital; Tokyo Japan
4. Department of Urology; JA Toride Medical Centre; Ibaraki Japan
5. Department of Urology; Kounodai Hospital; National Centre for Global Health and Medicine; Chiba Japan
6. Department of Urology; Soka Municipal Hospital; Saitama Japan
7. Department of Urology; Cancer Institute Hospital of Japanese Foundation for Cancer Research; Tokyo Japan
8. Department of Urology; Tsuchiura Kyodo General Hospital; Ibaraki Japan
9. Department of Urology; Saitama Red Cross Hospital; Saitama Japan
10. Department of Urology; Tokyo Metropolitan Ohtsuka Hospital; Tokyo Japan
11. Department of Urology; Tama-Nanbu Chiiki Hospital; Tokyo Japan
12. Department of Urology; Hamamatsu Medical Centre; Shizuoka Japan
13. Department of Urology; Saitama Cancer Centre; Saitama Japan