The Gene expression profiling interactive analysis (GEPIA) website provided the differentially expressed genes between 179 pancreatic tumor samples and 171 normal samples based on the integrated RNA-Seq data from TCGA and Genotype-Tissue Expression (GTEx) databases (34). The KM plotter website provided the genes associated with overall survival and relapse-free survival of patients from TCGA dataset (35). The TISIDB website was used to analyze the relationship between clinicopathological information and gene expression (36).
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