Gene set enrichment analysis
GSEA is implemented using developed Java software, and uses default
parameters by comparing high-risk (above the median) and low-risk groups
(below the median). We used GSEA_4.0.1 to identify the enriched KEGG
pathway of model genes in TCGA-COAD and GSE40976. The representative
enrichment pathway is plotted using the ”ggplot2” software package of
the R language.