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. 2012 Aug 29;18(1):1303–1311. doi: 10.2119/molmed.2012.00230

Figure 1.

Figure 1

Principal component (PC) analysis mapping of the samples from the whole microarray data. The color indicates the different groups (blue: saline samples; red: LPS samples) and ellipsoids are drawn around each group. (A) From the eight subjects, the total variation explained by PCs 1, 2 and 3 is 55%. Overlap is formed around saline and LPS samples. (B) From the seven subjects, the total variation explained by PCs 1, 2 and 3 is 57.5%. Clear clusters are formed around saline and LPS samples.