Gel immersion endoscopy simplifies hemostasis during endoscopic submucosal dissection using the pocket-creation method - Miura, Yoshimasa; Yano, Tomonori; Takezawa, Takahito; Sakamoto, Hirotsugu; Osawa, Hiroyuki; Lefor, Alan K; Yamamoto, Hironori (Endoscopy, 2018)