KDM4B and cholangiocarcinoma: As shown in Figure 6A, KDM4B is overexpressed in the tumor tissues of invasive breast carcinoma (BRCA), cholangiocarcinoma, head and neck squamous cell carcinoma (HNSC), chromophobe kidney cancer, clear cell RCC, hepatocellular carcinoma (LIHC), squamous cell lung carcinoma, prostate adenocarcinoma, and lower‐grade brain glioma (LGG), compared to their corresponding control tissues (Figure 6A, p < 0.05).