Clipping closure length is a crucial factor for delayed bleeding after endoscopic papillectomy: a retrospective multicenter cohort study. - Fujii Y; Matsumoto K; Ochi K; Himei H; Sakakihara I; Ueta E; Toyokawa T; Harada R; Ogawa T; Tomoda T; Kato H; Sato R; et al. (Therapeutic advances in gastroenterology, 2025)