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支气管哮喘(简称哮喘)是儿童时期常见的一种慢性呼吸道疾病,发病率有逐年增长的趋势。哮喘是一种以嗜酸性粒细胞、肥大细胞等浸润为主的慢性气道变态反应性炎症,常
Bronchial asthma (asthma) is a common childhood chronic respiratory disease, the incidence has increased year by year trend. Asthma is a kind of chronic airway allergic inflammation mainly caused by infiltration of eosinophils, mast cells, etc.