CDH2 and neoplasm: The expression of E-cadherin and N-cadherin was remarkably related to pathological TNM stage (I, II, III, and IV; P = 0.049 and P = 0.015), tumor size (<3 cm and ≥3; P = 0.004 and P = 0.028), depth grading of tumor invasion (T1+T2 and T3+T4; P = 0.001 and P = 0.002), and lymph node status (N0 and N1+N2; P = 0.016 and P = 0.030) (Table S3).