SLC22A1 and hepatocellular carcinoma: The risk score of HCC patients was calculated as follows: risk score = 0.382912 × TRNP1 + 0.65021 × CCDC112 + 1.885657 × CFL1 + (−1.23099) × CYB5D2 + (−0.29032) × SLC22A1.