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. 2019 Feb 14;25(6):707–718. doi: 10.3748/wjg.v25.i6.707

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©The Author(s) 2019. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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The study flow diagram based on the therapeutic outcomes of endoscopic resections. EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; EMR-S: Conventional method with snare; EMR-C: Cap-assisted EMR; R0: En bloc resection with tumor-free margins histopathologically; RX: Involvement of the horizontal and/or vertical margin could not be assessed histopathologically; R1: Involvement of the horizontal and/or vertical margin histopathologically; AC: Adenocarcinoma; HGIN: High-grade intraepithelial neoplasia; LGIN: Low-grade intraepithelial neoplasia.