As shown in Figure 3A, SOX9 was found to be upregulated in NSCLC (c and d, stage I NSCLC; e and f, stage II NSCLC; g and h, stage III NSCLC; and i and j, stage IV NSCLC) compared with that in the normal lung tissue (Figure 3). The gene discussed is SOX9; the disease is non-small cell lung carcinoma.