title: COPD: the dangerous underestimate of 15%.
authors.affiliation: University of Nebraska Medical Center, Omaha, NE 68198, USA. srennard@unmc.edu
authors.forename: Stephen I
authors.initials: SI
authors.lastname: Rennard
authors.forename: Jørgen
authors.initials: J
authors.lastname: Vestbo
mesh_terms: D003718:Denmark / Q000453:epidemiology; D004198:Disease Susceptibility; D006801:Humans; D015995:Prevalence; D029424:Pulmonary Disease, Chronic Obstructive / Q000145:classification / Q000209:etiology* / Q000503:physiopathology; D012720:Severity of Illness Index; D012907:Smoking / Q000009:adverse effects*