COPB2 and neoplasm: The proportion of OS importance accounted for by risk factors of TNM staging, degree of tumor differentiation, YAP1 expression, COPB2 expression, tumor number, and tumor size in the ANN model was 0.23, 0.2168, 0.1823, 0.1338, 0.1288, and 0.1083, respectively (Fig. 5B).