Despite the longer primary tumor latency wtEGFR combination had a higher lung metastasis incidence (Table 3, Figure 5B, 5C, Supplementary Table 3) as compared to wtErbB2 in K5+/K19− cell line and unique liver metastasis (Figure 5E, Table 3, Supplementary Table 4). This evidence concerns the gene KRT5 and neoplasm.