We examined plasma versican levels in these two types of NSCLC and found no statistically significant difference (t = 0.582; P > 0.05; Fig. 3A), and there was no statistically significant difference between the two types of lung cancer (t = 1.426; P > 0.05; Fig. 3B). The gene discussed is VCAN; the disease is non-small cell lung carcinoma.