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Identification of DEGs shared between the three databases. a The volcano plot of TCGA-STAD; b The volcano plot of GSE54129; c The volcano plot of GSE79973; d The venn diagram of up-regulated DEGs; e The venn diagram of down-regulated DEGs; f The heatmap of all 89 DEGs in TCGA-STAD. Abbreviations: TCGA, The Cancer Genome Atlas; GEO, Gene Expression Omnibus; DEGs, Differentially expressed genes
