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GOLD stage I is not a COPD risk factor
- The University of Arizona, 4460 East Ina Road, Tucson, Arizona 85718, USA; lungguy{at}aol.com
Citation
GOLD stage I is not a COPD risk factor
Publication history
- First published November 19, 2007.
Online issue publication
November 19, 2007
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2007 BMJ Publishing Group Ltd and British Thoracic Society