Figure 2. Construction of the prognostic model. (A) Differentially expressed genes between normal and tumor groups. (B) The top 20 differentially expressed genes were shown in the heatmap. (C) The forest plot of prognosis-related genes contained the Hazard Ratio (HR) and its 95% confidence interval. (D) Correlations between the prognosis-related genes. (E, F) The potential prognostic genes were subjected to LASSO-Cox regression in the training cohort to generate a prognostic risk signature.