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支气管哮喘（简称哮喘）为呼吸道常见病，病程反复迁延，严重影响儿童的生长发育。哮喘持续状态可导致呼吸衰竭而致死亡。国内小儿哮喘的流行病
Bronchial asthma (referred to as asthma) is a common respiratory disease, prolonged course of disease, seriously affecting children’s growth and development. Persistent asthma can lead to respiratory failure and death. Domestic pediatric asthma epidemics