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Kaplan-Meier survival after endoscopic submucosal dissection for superficial esophageal squamous cell carcinoma. (A) Overall survival for the different groups A, B, C. (B) Disease specific survival for the different groups A, B, C. (C) Overall survival after curative resection versus non-curative resection. (D) Disease specific survival after curative resection versus non-curative resection.
