Figure 4.

Cumulative meta-analysis to evaluate small-study effect. Studies are ordered according to descending variance on odds ratios. The vertical line indicates the no-association line (OR 1.0). Each study is represented by a horizontal line, corresponding to the OR (or estimates ES) and symmetric 95% CI.

Gillet et al. BMC Infectious Diseases 2011 11:10   doi:10.1186/1471-2334-11-10
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