Improved outcomes of endoscopic treatment for delayed perforation following endoscopic submucosal dissection for gastric epithelial neoplasms - Daiki Kitagawa; Noriya Uedo; Noboru Hanaoka; Takashi Kanesaka; Yasuhiro Tani; Yuki Okubo; Yuya Asada; Tomoya Ueda; Atsuko Kizawa; Takehiro Ninomiya; Yoshiaki Ando; Gentaro Tanabe; et al. (Endoscopy International Open)