title: Looking beyond the cigarette in COPD.
authors.forename: David M
authors.initials: DM
authors.lastname: Mannino
mesh_terms: D000531:Altitude; D018450:Disease Progression; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology*; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology