1. Working Group of the Renal Pelvic and Ureteral Cancer Registration Committee of the Japanese Urological Association
2. Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka
3. Urology Division, National Cancer Center Hospital, Tokyo, Japan
4. Department of Urology, Faculty of Medicine, University of Tsukuba, Ibaraki
5. Department of Urology, Keio University School of Medicine, Tokyo
6. Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama
7. Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan