Flores Uzcanga, Maura Alicia, Edgar Omar Narvaez Anzures, and Durán Nah Jaime Jesús. “Demographic and Clinical Characteristics Differentiating Patients Referred for Diagnostic Spirometry and Diagnosed With or Without Chronic Obstructive Pulmonary Disease”. British Journal of Healthcare and Medical Research 11, no. 6 (December 12, 2024): 252–263. Accessed January 2, 2025. https://journals.scholarpublishing.org/index.php/JBEMi/article/view/18014.