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. 2021 Dec 27;13(12):1628–1637. doi: 10.4240/wjgs.v13.i12.1628

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©The Author(s) 2021. 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: http://creativecommons.org/Licenses/by-nc/4.0/

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Bedside, standard T-tube removal procedure. A: The T-tube is removed; B: A Nelaton drain is kept aside to measure the length of the T-tube internal tract (whiter portion of the T-tube); C: The Nelaton drain is inserted approximately 2 cm shorter than the measured length.