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. 2013 May 13;8(5):e62950. doi: 10.1371/journal.pone.0062950

Figure 1. Begg's funnel plot with pseudo 95% confidence limits of publication bias test for RASSF1A methylation.

Figure 1

Each point represented a separate study for the indicated association. Logor natural logarithm of OR, horizontal line mean effect size. A: Begg's funnel plot of publication bias test. B: Begg's funnel plot of publication bias test after trim-and-fill method.