Efficacy and cost-effectiveness of a novel dual grasping forceps-assisted over-the-scope clip inverted closure after gastric endoscopic full-thickness resection - Nishiyama, Noriko; Fujihara, Shintaro; Tada, Naoya; Nakatani, Kaho; Morishita, Asahiro; Kishino, Takayoshi; Kobara, Hideki (Endoscopy, 2023)