2Charles E,Keed MD.Basic mechanisms of asthma:rale of inflammation.Chest,1988,94(1):175
3Jan LI,Kimpen MD,Usr B,Schaad MD.Treatment of respiratory syncytial virus bronchiolitis;1995 poll of members of the European society for pediatric infections diseases.Pediatric infection desese J,1997,16(5):478
4Corrao WM, Bramaa SS Irwin RS,Chronic cough as the sole presenting meanifestation of bronchial asthma.NEngl JMed, 1978,300(12) : 633.
5Welsh MJ.Mechanisms of airway epithelial iontranspart clin chest Med,1986,7(2) :273.