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. 2017 Jul 28;23(28):5196–5205. doi: 10.3748/wjg.v23.i28.5196

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©The Author(s) 2017. 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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Colorectal cancer-specific survival based on sex. A: CRC-specific survival according to metformin treatment in males; B: CRC-specific survival according to metformin treatment in females. CRC: Colorectal cancer.