Transcriptome analysis of four high EBV+ primary gastric cancers from the TCGA cohort [30] indicated that HIF-1α mRNA was, on average, 2.9-fold more abundant than HIF-2α mRNA (range 1.9-fold to 4.9-fold), with HIF-3α mRNA undetectable above background level. This evidence concerns the gene HIF1A and gastric cancer.