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. 2016 Jun 14;9:3511–3523. doi: 10.2147/OTT.S99713

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

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Forest plot of the risk of developing adult glioma in current-smokers.

Note: The pooled RR for current-smokers versus never-smokers was 0.97 (95% CI: 0.88, 1.07), with low heterogeneity (P=0.225, I²=23.7%).

Abbreviations: RR, relative risk; CI, confidence interval.