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. 2023 May 22;12(6):1452–1465. doi: 10.21037/tcr-22-2049

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2023 Translational Cancer Research. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0.

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Forest plot and pooled estimates of the effect of cholecystectomy on the risk of left-sided colon cancer (A) and right-sided colon cancer (B). Weights are from a random effects model. CI, confidence interval; DL, DerSimonian and Laird.