The study ultimately enrolled 257 HCC patients including 143 from FAH-ZJU (CK19+:CK19− = 64:79), 75 from SLH (CK19+:CK19− = 34:41), and 39 from LSCH (CK19+:CK19− = 8:31). Here, KRT19 is linked to hepatocellular carcinoma.