In another study [50], Li et al. compare gene expression between 56 oral cancer samples and 56 normal tissues from 7 data sets (among these only GSE30784 is included in this study) and find that the interferon pathway genes CXCL10 and IFI27 are upregulated in oral cancer, which results are the same as the present study. This evidence concerns the gene CXCL10 and lip and oral cavity carcinoma.