Similarly, higher CKS2 mRNA levels were also observed in HCC tissues compared with normal tissues in databases including the GSE14520 (Figure 1(b); fold change, 5.02; P < 0.001), GSE45436 (Figure 1(c); fold change, 4.36; P < 0.001), and GSE36376 (Figure 1(d); fold change, 2.07; P < 0.001). This evidence concerns the gene CKS2 and hepatocellular carcinoma.