What Are the Different Stages of COPD?
Chronic obstructive pulmonary disease, or COPD, is a progressively worsening disease that causes difficulty breathing.
Matthew Busse
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COPD: End-of-Life Symptoms
Chronic obstructive pulmonary disease -- COPD -- is a medical term used to describe a collection of lung diseases that include emphysema and chronic bronchitis. COPD is the leading cause of death throughout the world.
Rae Uddin
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