Feasibility and Safety of Submucosal Tunneling Endoscopic Resection in One Tunnel for Multiple Esophageal Submucosal Tumors Originating from the Muscularis Propria Layer.

BACKGROUND AND AIMS: Submucosal tunneling endoscopic resection (STER) is an effective and safe treatment for esophageal submucosal tumors (SMTs) with small sizes, yet its efficacy for multiple SMTs remains unclear. This study aimed to evaluate the fe…

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