As shown in Fig. 2B, the EGFR‐overexpressing cancer cells were the KYSE520, A431, MDA‐MB‐468, AsPC‐1, and HCC827 cells, the EGFR relative low‐expressing cells were the A549, KYSE150, MCF‐7, and NCI‐H1975 cells, and the EGFR‐lacking expression cells were the Karpas 299 cells. This evidence concerns the gene EGFR and cancer.