CRABP2 and metastatic malignant neoplasm in the lymph nodes: In univariate analysis, death and recurrence were regarded as dependent variables, and 16 factors were regared as arguments, such as the gender, ethnicity, degree of differentiation, depth of invasion, AJCC stage, lymph node metastasis, nerve invasion, hematogenous metastasis, CRABP2 expression, etc. In order to avoid missing some important factors, p = 0.15 was setted in univariate analysis.