title: Natural history of successive COPD exacerbations.
authors.forename: Jadwiga A
authors.initials: JA
authors.lastname: Wedzicha
authors.forename: Gavin C
authors.initials: GC
authors.lastname: Donaldson
mesh_terms: D000208:Acute Disease; D000367:Age Factors; D018450:Disease Progression; D019317:Evidence-Based Medicine; D006801:Humans; D011379:Prognosis; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis* / Q000209:etiology / Q000401:mortality / Q000503:physiopathology* / Q000628:therapy; D012129:Respiratory Function Tests; D012307:Risk Factors; D012720:Severity of Illness Index