Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSmoking duration, respiratory symptoms, and COPD in adults aged ≥45 years with a smoking history.AuthorsYong Liu; Pleasants, Roy A.; Croft, Janet B.; Wheaton, Anne G.; Heidari, Khosrow; Malarcher, Ann M.; Ohar, Jill A.; Kraft, Monica; Mannino, David M.; Strange, CharliePublicationInternational Journal of COPD, 2015, p1409ISSN1176-9106Publication typeArticleDOI10.2147/COPD.S82259