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The St. George’s Respiratory Questionnaire Definition of Chronic Bronchitis May Be a Better Predictor of COPD Exacerbations Compared With the Classic Definition

AsthmaPulmonary CareInflammatory Lung DiseaseAdvanced Lung DiseaseSt. George ’Respiratory DiseasesRespiratory Questionnaire DefinitionPulmonary PhysiologyPulmonary MedicineMedicinePulmonary DiseaseClassic Definition