Spirometry for COPD Spirometry for COPD This outdated information has been archived and is available for reference purposes only. To access the archived document, please go to: http://archive.ahrq.gov/clinic/epcarch.htm. Current as of August 2005 Internet Citation: Spirometry for COPD. August 2005. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/redirects/spiro.html
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