2[1]DAVAD J,LUCY M.Cough variant asthma:a review of clinical literature[J].Asthma,1991,28 (2):85-90.
3[2]FUJIMURA M,SONGUR N,KAMINO Y,et al.Detection of eosinophils in hypertonic saline induced sputum in patients with chronic nonproductive cough[J].Asthma,1997,34(2):119-126.