Figure 3: Association of pSMAD2 (ratio of TGF-β1 stimulated and unstimulated) in patient PBMCs and the 37-gene whole blood Expression Index: Negative Correlation plot of the ratio of PBMC derived phosphorylated SMAD2/3, stimulated (SS)/unstimulated (SU)with the ex-vivo derived 37-gene expression index from whole blood of 28 cancer patients. The solid line represents the simulated correlation and the dotted lines represent the confidence interval. The horizontal dotted line intersects the area where the correlation was highest.