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The acute airway narrowing that occurs as a result of exercise is defined exercise-induced bronchoconstriction (EIB). Most recent guidelines recommend distinguishing EIB with underlying clinical asthma (EIBA) from the occurrence of bronchial obstruction in subjects without other symptoms and signs of asthma (EIBwA). EIB has been in fact reported in up to 90 % of asthmatic patients, reflecting the...
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