Reversibility of airways obstruction.
D000402:Airway Obstruction / Q000188:drug therapy* / Q000209:etiology; D001249:Asthma / Q000150:complications* / Q000175:diagnosis; D001991:Bronchitis / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D004804:Eosinophils; D006801:Humans; D013183:Sputum / Q000166:cytology*