Figure 3From: The contribution of the ABCG2 C421A polymorphism to cancer susceptibility: a meta-analysis of the current literature 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.Back to article page