In NSCLC patients with T1 tumor, olfactory receptor 2AT4, and homeobox protein DBX1 were observed in all samples (100%); however, these proteins were also detected in 80% and 60% of the samples of patients with T2 tumors, respectively, and were also observed in 50% of the samples of patients with T3 + T4 tumors (Table S5). The gene discussed is POU2F2; the disease is neoplasm.