Single-docking robotic assisted proctectomy for rectal cancer below peritoneal reflection: a propensity score matching analysis - Zhang, Tao; Song, Zijia; Zhang, Yaqi; Ye, Feng; Cheng, Xi; Wang, Shaodong; Jing, Xiaoqian; Ji, Xiaopin; Zhao, Ren (Annals of Translational Medicine; Vol 9, No 12 (June 29, 2021): Annals of Translational Medicine, 2021)