title: [What criteria predict the severity of an exacerbation?].
authors.forename: J-C
authors.initials: JC
authors.lastname: Meurice
mesh_terms: D018450:Disease Progression; D006801:Humans; D011379:Prognosis; D029424:Pulmonary Disease, Chronic Obstructive / Q000209:etiology* / Q000473:pathology*; D012307:Risk Factors; D012720:Severity of Illness Index