Fowler, S J Comparative in vivo lung delivery of hydrofluoroalkane-salbutamol formulation via metered-dose inhaler alone, with plastic spacer, or with cardboard tube. [electronic resource] - Chest Apr 2001 - 1018-20 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0012-3692 Standard No.: 10.1378/chest.119.4.1018 doi Subjects--Topical Terms: Administration, InhalationAdolescentAdultAerosol PropellantsAgedAlbuterol--administration & dosageBiological AvailabilityBronchodilator Agents--administration & dosageChromatography, High Pressure LiquidCross-Over StudiesEquipment DesignHumansHydrocarbons, FluorinatedLung--metabolismMiddle AgedNebulizers and VaporizersSingle-Blind Method