Furthermore, KEGG analysis indicated enrichment in pathways associated with carbon metabolism, hepatocellular carcinoma, drug metabolism, the HIF-1 signaling pathway, the cell cycle, the MAPK signaling pathway, the ErbB signaling pathway, the PI3K-Akt signaling pathway, non-small cell lung cancer, and the TNF signaling pathway (Figure 4c). Here, EGFR is linked to hepatocellular carcinoma.