EGFR and cancer: The KEGG enrichment analysis suggested that the TCGA-STAD cohort was enriched in mitophagy—animal, forkhead box O (FoxO) signaling pathway, ferroptosis, autophagy—animal, necroptosis, NOD-like receptor signaling pathway, glutathione metabolism, 2-oxocarboxylic acid metabolism, central carbon metabolism in cancer, p53 signaling pathway, erythroblastic oncogene B (ErbB) signaling pathway, and autophagy—other (Figure 5B).