title: Is this the beginning of unravelling the puzzle of COPD exacerbations?
authors.forename: R
authors.initials: R
authors.lastname: Rodríguez-Roisin
mesh_terms: D000208:Acute Disease; D002908:Chronic Disease; D004417:Dyspnea / Q000209:etiology / Q000503:physiopathology* / Q000628:therapy; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications / Q000503:physiopathology* / Q000628:therapy; D012129:Respiratory Function Tests; D015656:Respiratory Mechanics / Q000502:physiology*; D012720:Severity of Illness Index; D016896:Treatment Outcome