Figure 1
From: Highly frequent PIK3CA amplification is associated with poor prognosis in gastric cancer
Copy number of the PIK3CA gene corresponding to each individual case of gastric cancers and normal gastric tissues ( circle ). Real-time quantitative PCR was performed to analyze the copy number of PIK3CA gene in a large cohort of gastric cancers and normal gastric tissues. Details are as described in Methods. Horizonal lines indicate a 95% confidence interval for the sample mean. T, tumor tissues; N, normal gastric tissues.