Through the Human Protein Atlas (HPA) database, we also supplied the immunohistochemical images of the remaining model-constructed molecules in the HPA database, which indicated that there was a higher expression of GEMIN2, CDKN2A, and DLAT in HCC than in normal tissues (Supplementary Figure S1E), but the immunohistochemical data of KLF9 were not obtained. This evidence concerns the gene KLF9 and hepatocellular carcinoma.