Clip-with-line traction suture method with adaptation of the mucosal flap in a large transmural defect after submucosal tunneling endoscopic resection of a submucosal tumor at the esophagogastric junction - Cappello, Annalisa; Xavier, Sofia; Neuhaus, Horst; Beyna, Torsten; Gerges, Christian (Endoscopy, 2022)