Figure 4. The relationship between serum tumor markers in patients with NSCLC bone metastases and different genotypes of CTNNB1: rs1880481. The serum tumor markers contained (A) carcinoembryonic antigen (CEA), (B) cytokeratin fragment 19 (CYFRA21-1), (C) neuron-specific enolase (NSE), and (D) squamous cell carcinoma (SCC) antigen.