Figure 3. The potential biological functions of four selected associated-survival genes. (A, B) Functional annotations of differentially expressed genes in clsuter2 compared with cluster1 based on TCGA datasets determined from Geno Ontology (GO) and Kyoto Encyclopedia of Gene and Genomes (KEGG) pathway analyses. (C) Malignancy hallmarks positively enriched in cluster2 determined using gene set enrichment analysis (GSEA) in the TCGA datasets.