CTBP2 and hepatocellular carcinoma: Clinical association analysis using the Spearman rank test demonstrated that CtBP2 overexpression in HCC tissues was positively correlated with tumor size ( p = 0.039), venous infiltration ( p = 0.003), Edmondson-Steiner Classification ( p < 0.001) and the Tumor Node Metastasis (TNM) stage ( p = 0.018).