Methods Airway resistance was measured before and after salbutamol inhalation in 55 children with recurrent wheeze,31 with mere cough and 18 without respiratory symptoms.

• 方法对55例反复喘息患儿、31例单纯咳嗽患儿、18例无呼吸道症状儿童进行吸入沙丁胺醇气雾剂前后的气道阻力测定。