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A remarkable report card on progress in COPD
Richard Casaburi The Lancet Volume 370, Issue 9589, Pages (September 2007) DOI: /S (07) Copyright © 2007 Elsevier Ltd Terms and Conditions
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The Lancet 2007 370, 731-732DOI: (10.1016/S0140-6736(07)61360-9)
Copyright © 2007 Elsevier Ltd Terms and Conditions
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Annual number of COPD citations in PubMed between 1987 and 2006
The Lancet , DOI: ( /S (07) ) Copyright © 2007 Elsevier Ltd Terms and Conditions
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