Submucosal tumors of the esophagogastric junction originating from the muscularis propria layer: a large study of endoscopic submucosal dissection (with video)
Keywords: EFTR, endoscopic full-thickness resection; EGJ, esophagogastric junction; ESD, endoscopic submucosal dissection; GIST, GI stromal tumor; MP, muscularis propria; SMT, submucosal tumor