As shown in Figure 8, based on GlioVis database (TCGA‐GBM and CGGA‐GBM), CDC20, CCNB2 and MYBL2 (P‐value < 0.01) (Figure 8) was correlated with the survival of determine optimal cutoff for Kaplan‐Meier survival analysis (Figure 8). This evidence concerns the gene CCNB2 and glioblastoma.