1. Division of Urology; Kobe University Graduate School of Medicine; Kobe Japan
2. Japanese Society of Endourology Robotic Partial Nephrectomy Study Group; Kobe Japan
3. Department of Urology; Institute of Biomedical and Health Science; Hiroshima University; Hiroshima Japan
4. Division of Urology; Tottori University; Yonago Japan
5. Department of Urology; Fujita Health University; Toyoake Japan
6. Department of Urology; Okayama University Graduate School of Medicine; Okayama Japan
7. Department of Urology; St. Luke's International Hospital; Tokyo Japan
8. Department of Urology; Tokushima University Graduate School; Tokushima Japan
9. Department of Urology; Juntendo University; Tokyo Japan
10. Department of Urology; Nagoya University Graduate School of Medicine; Nagoya Japan