Shah, S S Breathlessness and exercise tolerance in chronic airflow obstruction: 2-hourly versus 4-hourly salbutamol by inhalation. [electronic resource] - Current medical research and opinion 1983 - 345-9 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0300-7995 Standard No.: 10.1185/03007998309112395 doi Subjects--Topical Terms: AgedAlbuterol--administration & dosageClinical Trials as TopicHumansLung Diseases, Obstructive--drug therapyMiddle AgedPhysical ExertionRespiration--drug effectsSpirometry