COPD | Chronic Obstructive Pulmonary Disease | MedlinePlus
https://medlineplus.gov/copd.html
COPD includes two main types: 1. Emphysemaaffects the air sacs in your lungs, as well as the walls between them. They become damaged and are less elastic. 2. Chronic bronchitis, in which the lining of your airways is constantly irritated and inflamed. This causes the lining to swell and make … See more
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