Figure 3.

Funnel plot of the risk ratios vs. the reciprocal of their standard errors of trials evaluating the efficacy of Peg-IFN α-2a versus Peg-IFN α-2b on the different outcomes of interest.

Coppola et al. BMC Infectious Diseases 2012 12:357   doi:10.1186/1471-2334-12-357
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