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Representative image of the ulcer healing process after circumferential endoscopic submucosal dissection of the esophagus. A: 3 wk after ESD of patient without Tranilast intake; B: 16 wk after ESD of patient without Tranilast intake; C: 3 wk after ESD of patient with Tranilast intake; D: 16 wk after ESD of patient with Tranilast intake. ESD: Endoscopic submucosal dissection.
