Our finding showed that abnormally expressed genes included CDKN1A, HSPA5, EMC2, SLC7A11, NFE2L2, MT1G, HSPB1, FANCD2, CISD1, FDFT1, SLC1A5, TFRC, RPL8, GLS2, DPP4, CS, CARS1, ATP5MC3, ALOX15, ACSL4, and ATL1 in CCA (Figure 2(a)). This evidence concerns the gene TFRC and cholangiocarcinoma.