title: What evidence could validate the definition of COPD?
authors: Roberto
authors: R
authors: de Marco
mesh_terms: D019317:Evidence-Based Medicine; D005541:Forced Expiratory Volume / Q000502:physiology; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000503:physiopathology; D015203:Reproducibility of Results; D014797:Vital Capacity / Q000502:physiology