We further analyzed the correlations between lincRNA P7 levels and the mRNA levels of the STAT1 and Erk1/2 genes in 60 clinical HCC tissue samples, and found no significant correlations between lincRNA P7 and the mRNA levels of Erk1/2 and STAT1 (Supplementary Figure 5). This evidence concerns the gene MAPK3 and hepatocellular carcinoma.