Figure 2. Expression of CCRs in HCC and para-carcinoma tissues. (A) Expression level of CCRs between HCC and para-carcinoma tissues in GSE14520; (B) Matrix graphs of Pearson correlations for CCRs in GSE14520; (C) expression level of CCRs between HCC and para-carcinoma tissues in TCGA database; (D) Matrix graphs of Pearson correlations for CCRs in TCGA database. * P<0.05, ** P<0.01, *** P<0.001, **** P<0.0001.