**Figure 3.** **The analyses of HMG-box related DEmRNAs co-expressed lncRNA.** Principle component analysis (PCA) of HMG-box related DEmRNAs was shown in (**A**), PCA analysis for co-expressed lncRNA in (**B**); PCA analysis for risk lncRNA was shown in (**C**). (**D**) Heatmap of risk lncRNA among high and low risk groups. (**E**) The distribution of co-expressed lncRNA survival status and survival time in model group. (**F**) Forest plot drawing for the independent prognostic value of risk lncRNAs extracted from univariate Cox regression analysis. (**G**) The survival curves of GBM patients in model group.