Higher LINC01234 expression level was also significantly correlated with tumor size (Chi-square test, P = 0.042), TNM stage (Chi-square test, P = 0.015), and lymph node metastasis (Chi-square test, P = 0.011) in NSCLC patients, but not with other factors, including sex and age (Fig. 1f, g, Additional file 1: Table S2). The gene discussed is LINC01234; the disease is metastatic malignant neoplasm in the lymph nodes.