Examining the behavior of EGFR differential expression to proliferation markers in COAD, BRCA, GBB, and the Cancer Cell Line Encyclopedia (from the Broad Institute and Novartis, 877 samples) [8, 9] (Supplementary Table 2) permitted identification of the inverse relationship in COAD and in the cell lines, but not in GBB or BRCA (Figure 4A). Here, EGFR is linked to cancer.