copd
Understanding COPD
Understanding COPD - Chronic obstructive pulmonary disease cause, pathophysiology and treatment
COPD (Chronic Obstructive Pulmonary Disease), Chronic Bronchitis, Emphysema-NCLEX Part 1
COPD - Chronic Obstructive Pulmonary Disease, Animation.
Understanding COPD | Duke Health
COPD: Pathophysiology and Diagnosis