Figure 1From: The analysis of PIK3CA mutations in gastric carcinoma and metanalysis of literature suggest that exon-selectivity is a signature of cancer typePoint and 95% confidence interval estimates of prevalence of mutations affecting exon 9 and 20 of PI3KCA in 36 series. Mutations affecting exon 9 and 20 are shown as solid filled boxes and empty diamonds, respectively. The pooled estimates for each group are shown in grey.Back to article page