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Title: MEDLINEplus Medical Encyclopedia: Chronic obstructive pulmonary ...
Description: Chronic obstructive pulmonary disease. Emphysema and chronic bronchitis are the most common forms of chronic obstructive pulmonary disease.
Date Added: 2/17/2004 5:41:06 PM
URL: http://www.nlm.nih.gov/medlineplus/ency/article/000091.htm
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