**Figure 4.** **Validation of the prognostic model.** (**A**) Forrest plot of the univariate Cox regression analysis in TCGA. (**B**) Forrest plot of the multivariate Cox regression analysis in TCGA. (**C**) The risk scores distribution, survival status, and gene expression patterns of HCC patients in GSE14520. The dot presents patient status ranked by the increasing risk score. The X axis is patient number and Y axis is survival time. (**D**) Kaplan–Meier survival curve of two groups in GSE14520. (**E**) The time-dependent ROC curves analyses of two groups in GSE14520.