CHRONIC OBSTRUCTIVE PULMONARY DISEASE

Chronic obstructive pulmonary disease (COPD) is a chronic disease that affects the lungs. (The word pulmonary refers to the lungs) It is very common: more than 11 million Americans have COPD, and it is currently the fourth leading cause of death in the United States. COPD is a progressive disease, and it gets worse with each successive year. ................
................