[1]Zanhuang Hospital of Hebei Province;
051230;
China;
[2]The Second Hospital of Xinji City;
Hebei;
052360;
China;
[1]Zanhuang Hospital of Hebei Province;
051230;
China;
[1]Zanhuang Hospital of Hebei Province;
051230;
China;
[1]Zanhuang Hospital of Hebei Province;
051230;
China;
Montelukast; Extended care; Children; Bronchial asthma;