Sputum eosinophil counts and eosinophil cationic protein levels in cough‐variant asthma and in classic asthma, and their relationships to airway hypersensitivity or maximal airway response to methacholine

Background:  The aims of this study were to compare the degree of airway inflammation in cough‐variant asthma (CVA) with that in classic asthma (CA), and to examine the relationship between airway inflammation and airway hypersensitivity or maximal airway response to methacholine in both conditions.

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