Hydronephrosis modifies the association between ureteroscopy and intravesical recurrence risk after radical nephroureterectomy for upper tract urothelial carcinoma

T Takeshi Sano J Junichi Ikeda T Takashi Yoshida T Takahiro Nakamoto Y Yusuke Motoki R Ryuichi Yoshida T Toshifumi Takahashi Y Yuto Hattori T Toshinari Yamasaki M Masaaki Imamura G Go Kobori J Jun Watanabe N Noriyuki Ito T Toshiya Akao S Shotaro Hatano S Shigeki Koterazawa T Tomohiro Fukui K Kaoru Murakami T Takayuki Sumiyoshi Y Yuki Kita K Kimihiko Masui T Takayuki Goto H Hidefumi Kinoshita T Toru Kanno T Takashi Kobayashi R Ryoichi Saito