title: Chronic cough and phlegm in young adults: should we worry?
authors.forename: Jørgen
authors.initials: J
authors.lastname: Vestbo
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003371:Cough / Q000175:diagnosis*; D006801:Humans; D009093:Mucus; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology* / Q000209:etiology*; D012306:Risk