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. 2016 Apr 6;10:1345–1354. doi: 10.2147/DDDT.S96766

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© 2016 Song et al. This work is published and licensed by Dove Medical Press Limited

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Funnel plot for publication bias.

Notes: (A) RARβ hypermethylation in NSCLC and non-neoplastic lung tissue; (B) RARβ hypermethylation in AC and SCC; (C) RARβ hypermethylation in advanced and low stage of NSCLC; (D) RARβ hypermethylation of NSCLC in smoking and nonsmoking individual; (E) RARβ hypermethylation of NSCLC in different sexes; (F) the association between RARβ hypermethylation and the risk of NSCLC.

Abbreviations: NSCLC, non-small-cell lung carcinoma; AC, adenocarcinoma; SCC, squamous cell carcinoma; SE, standard error of the mean; OR, odds ratio; df, degree of freedom.