EGFR and urinary bladder cancer: Moreover, we used the KEGG database for pathway analysis, and the top 10 signaling pathways according to the enrichment scores were as follows: proteoglycans in cancer, pathways in cancer, the ErbB signaling pathway, non‐small‐cell lung cancer, bladder cancer, melanoma, glioma, endometrial cancer, pancreatic cancer, and glial cell signaling in Helicobacter pylori infection (Figure 3B).