BARX2 and neoplasm: Decreased Barx2 expression was highly correlated with tumor invasion (pT stage, P<0.001), LNM (pN stage, P=0.012), distant metastasis (M stage, P=0.044), advanced UICC stage (P<0.001), vascular invasion (P=0.002), nerve invasion (P=0.03), and histological differentiation (P<0.001).