Next, Figure 5 also displays the top 30 KEGG pathways enriched by DEGs, including, Epstein–Barr virus infection, hepatitis B, measles, pathways in cancer, small cell lung cancer, viral carcinogenesis, prostate cancer, hepatitis C, p53 and MAPK signaling pathways, and so on. This evidence concerns the gene TP53 and small cell lung carcinoma.