%0 Journal Article %T Investigative use of bronchoscopy, lavage and bronchial biopsies in asthma and other airways diseases %D 1992 %R 10.1183/09031936.93.05010115 %J European Respiratory Journal %P 115-121 %V 5 %N 1 %U https://erj.ersjournals.com/content/erj/5/1/115.full.pdf