By contrast, in cancer tissues, 81 of 146 (55%) samples had weak or negative CHD4 expression, whereas 65 of 146 (45%) samples had moderate or strong CHD4 expression (Fig. 1b), demonstrating that the expression of CHD4 was higher in NSCLC tumor tissues than in adjacent non-cancerous tissues. The gene discussed is CHD4; the disease is non-small cell lung carcinoma.