Is it asthma or COPD?

Is it asthma or COPD?

Martinez, Fernando J., Standiford, Connie, Gay, Steven E.
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Volume:
117
Language:
english
Journal:
Postgraduate Medicine
DOI:
10.3810/pgm.2005.03.1593
Date:
March, 2005
File:
PDF, 791 KB
english, 2005
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