title: Spirometric definition of COPD: exercise in futility or factual debate?
authors.forename: Vito
authors.initials: V
authors.lastname: Brusasco
mesh_terms: D005540:Forced Expiratory Flow Rates; D006801:Humans; D018447:Medical Futility; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000503:physiopathology; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D013147:Spirometry / Q000379:methods*