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. 2016 Sep 1;10(5):435–443. doi: 10.1177/1753465816667121

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© The Author(s), 2016

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Forest plot of comparison: the overall survival (OS) of segmentectomy versus wedge resection in patients with stage I non-small cell lung cancer. Seven studies were included. CI, confidence interval; df, degrees of freedom; SE, standard error.