Epstein, S W A comparison of three means of pressurized aerosol inhaler use. [electronic resource] - The American review of respiratory disease Aug 1983 - 253-5 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0003-0805 Standard No.: 10.1164/arrd.1983.128.2.253 doi Subjects--Topical Terms: AdultAerosolsAsthma--drug therapyDouble-Blind MethodEthanolamines--administration & dosageFemaleFenoterol--administration & dosageHumansMaleMethodsMiddle AgedPatient ComplianceRandom AllocationRespiratory Therapy--instrumentation