Lulling, J Evaluation of onset of bronchodilating effect by interruption of the air flow method. [electronic resource] - European journal of respiratory diseases Apr 1980 - 108-12 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 0106-4339 Subjects--Topical Terms: AdultAerosolsAgedBronchi--drug effectsButyrates--therapeutic useClinical Trials as TopicDouble-Blind MethodFemaleForced Expiratory Flow RatesForced Expiratory VolumeHumansLung Diseases, Obstructive--drug therapyLung Volume MeasurementsMaleMiddle AgedPlacebosTerbutaline--analogs & derivatives