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Submucosal tunneling endoscopic resection procedure in the Second Xiangya Hospital of Central South University (Changsha, China). (A) Submucosal tumor in the gastric fundus proximate to the cardia. (B) Submucosal injection. (C) The marked location of the tumor. (D) Tunnel entry. (E) The submucosal tumor. (F) Tumor dissection. (G) The dissected tumor in the tunnel. (H) The resected tumor. (I) Mucosal entry closure.
