%0 Journal Article %A U Costabel %T Bronchoalveolar lavage: a standardized procedure or a technical dilemma? %D 1991 %R 10.1183/09031936.93.04070776 %J European Respiratory Journal %P 776-777 %V 4 %N 7 %U https://erj.ersjournals.com/content/erj/4/7/776.full.pdf