As for grade plots, the results of the unpaired t test suggested that ASPM, BIRC5, CCNB2, CDK1, DLGAP5, FOXM1, RACGAP1, TOP2A, and TPX2 were closely related to tumor grade based on GSE10927 (the p values are shown in Supplementary Table S7). This evidence concerns the gene CDK1 and neoplasm.