Analysis of TCGA dataset showed that the expression levels of EPOR in bladder urothelial carcinoma (BLCA), CHOL, HNSC, kidney renal clear cell carcinoma (KIRC), LIHC, STAD, and THCA were higher than normal tissues but those in LUAD and lung squamous cell carcinoma (LUSC) were lower than normal tissues (Figure 1A), as detailed in Supplementary Table 1. Here, EPOR is linked to bladder transitional cell carcinoma.