In addition, there was no correlation between FEV1 or FEV1/FVC in COPD patients and POU5F1 transcript expression at ALI7 (r2 = 0.0894, p > 0.05, and r2 = 0.0032, p > 0.05, respectively) or at ALI35 (r2 = 0.12, p > 0.05, and r2 = 0.2303, p > 0.05, respectively) (Supplementary Figure S2). The gene discussed is POU5F1; the disease is chronic obstructive pulmonary disease.