Figure 3 .
Influence analysis for A allele versus C allele in the overall meta-analysis. This figure illustrates the influence of individual studies on the summary OR. The middle vertical axis shows the overall OR and the two vertical axes indicate the 95% CI. Results were computed by omitting each study (left column) in turn. Meta-analysis random-effects estimates were used.
Chen et al. BMC Cancer 2012 12:383 doi:10.1186/1471-2407-12-383