Retraction Note: Minimally invasive robotic ureteral reconstruction using endoscopic submucosal dissection harvested colorectal mucosa graft for ureteral stricture

H Haihang Nie Y Yali Yu X Xiubing Chen J Jingkai Zhou X Xianglin Li (School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology) Y Yuntian Hong F Fan Wang C Chaoqi Liang B Bing Li H Haizhou Wang H Hongling Wang Q Qiu Zhao J Jiayan Nie