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. 2018 Nov 13;10(1):67–77. doi: 10.3892/mco.2018.1763

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Copyright: © Xiao et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 2. — Begg's funnel plot of OS group. The meta-analysis for microRNA expression levels and OS in patients with lung cancer was analyzed using a funnel plot because it exceeded the pre-requisite of 10 studies. The y-axis represents the SE (logHR), which served as a measure of precision, where the higher the SE, the less precise the study. The HR has been plotted along the x-axis. The pattern of the study was symmetric which indicated that the bias of the study was small. SE, standard error; logHR, log hazard ratio; OS, overall survival.