Balloon occlusion method using a commercially available ileus tube during endoscopic full-thickness resection: Simple solution to gas leakage - Inoue, Haruhiro; Abiko, Satoshi; Ushikubo, Kei; Yamamoto, Kazuki; Nishikawa, Yohei; Tanaka, Ippei; Sakamoto, Naoya (Endoscopy International Open, 2025)