http://WWW.ADVANCEDRESPIRATORYCENTRE.COM
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Reduced COPD exacerbation risk correlates with improved FEV1: A meta-regression analysis. A significant correlation between increased FEV1 and lower COPD exacerbation risk suggests airway patency is an important mechanism responsible for this effect
http://WWW.ADVANCEDRESPIRATORYCENTRE.COM/reduced-copd-exacerbation-risk/b68
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