Successful mucosal closure of artificial gastric ulcer with twin grasping forceps and endoclips after endoscopic submucosal dissection - Nakaoka, Michiko; Chiba, Hideyuki; Yamada, Keiji; Okada, Naoya; Arimoto, Jun; Kuwabara, Hiroki; Goto, Toru (Endoscopy, 2021)