POU2F2 and non-small cell lung carcinoma: 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).