Henry, R L Simple drug delivery system for use by young asthmatics. [electronic resource] - British medical journal (Clinical research ed.) Jun 1983 - 2021 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 0267-0623 Standard No.: 10.1136/bmj.286.6383.2021 doi Subjects--Topical Terms: AerosolsAlbuterol--administration & dosageAsthma--drug therapyChildChild, PreschoolHumansRespiratory Therapy--methods