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Figure 7 Publication Bias and Its Potential Impact
The blue circles represent individual studies, the blue lines are the funnel plot, and the blue diamond is the relative risk (RR) and 95% confidence interval for the meta-analysis. The red circles represent imputed studies, and the red lines represent the adjusted funnel plot. The red diamond is the RR and 95% confidence interval for the meta-analysis, after adjusting for publication bias. Log (RR) = logarithm of the RR; SE = standard error.
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