To evaluate the prognostic significance of the cytoplasmic and nuclear HDAC6 protein levels, we scored the HDAC6 intensity in tumor samples from the 134 patients with NSCLC on a scale from zero (low expression) to three (high expression) on the basis of the staining intensity in the cytoplasm and nucleus (Supplementary Figure 1). The gene discussed is HDAC6; the disease is non-small cell lung carcinoma.