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Endoscopic findings of the esophagogastric junction in a patient who underwent endoscopic submucosal dissection for gastroesophageal reflux disease (ESD-G). Before ESD-G (a), immediately after ESD-G (b), and 3 months after ESD-G (c). The area enclosed by the yellow arrows is the Barrett epithelium, and the mucosa of the same area is resected. Dark blue arrows indicate reflux esophagitis, and reflux esophagitis has disappeared after ESD-G
