Comparison of the initial operative experience of a single surgeon carrying out robot‐assisted laparoscopic pyeloplasty, laparoendoscopic single‐site pyeloplasty and conventional laparoscopic pyeloplasty. (8th November 2019) - Naitoh, Yasuyuki; Ajiki, Jun; Yamada, Yasuhiro; Fujihara, Atsuko; Hongo, Fumiya; Ukimura, Osamu