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. 2023 Apr 7;29(13):2015–2033. doi: 10.3748/wjg.v29.i13.2015

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©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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. See: https://creativecommons.org/Licenses/by-nc/4.0/

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Age distribution in all patients treated in six-time intervals and according to gender in 2015-2016, 2017, 2018, 2019, 2020, and 2021. A: In six-time intervals; B: In 2015-2016; C: In 2017; D: In 2018; E: In 2019; F: In 2020; G: In 2021.