Fig. 1From: Network and functional analyses of differentially expressed genes in gastric cancer provide new biomarkers associated with disease pathogenesisIllustration of outlier samples in the PCA plot. PC1 is the eigenvector one, and PC2 is the eigenvector two. Normal samples are blue with the suffix N, while tumor samples are red with the suffix C. one of the apparent outlier samples is GSM1540941_N in the top right cornerBack to article page