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. 2017 Dec 19;18(4):1470320317741066. doi: 10.1177/1470320317741066

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© The Author(s) 2017

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) 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 pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Meta-analysis with a random-effects model for the association between EH risk and the TNF-a -308G/A polymorphism (AA+GA vs. GG).

The OR estimate for each study is marked with a solid black square. The size of the square represents the weight that the corresponding study exerts in the meta-analysis. The CIs of the pooled estimates are displayed as a horizontal line through the diamond; this entire line may be inside the diamond if the CI is narrow.