Complete resection of a 225-mm circumferential rectosigmoid intramucosal carcinoma by endoscopic submucosal dissection - Takahashi, Haruo; Hayashi, Yoshikazu; Sunada, Keijiro; Shinozaki, Satoshi; Oguro, Kunihiko; Lefor, Alan K.; Yamamoto, Hironori (Endoscopy, 2016)