1HAMID Q,SONG Y,KOTSIMBOS TC,et al.Inflammation of small airways in asthma[].The Journal of Allergy and Clinical Immunology.1997
2KRAFT M.The distal airways: are they important in asthma[].European Respiratory Journal.1999
3FAIRSHTER RD,WILSON AF.Relationship between the site of airflow limitation and localization of bronchodilator response in asthma[].The American Review of Respiratory Disease.1980
