HEIMLICH, E M CLINICAL AND LABORATORY EVALUATION OF AN ANTIASTHMATIC PREPARATION WITH PROLONGED ACTION. [electronic resource] - The Journal of allergy - 27-37 p. digital Publication Type: Journal Article ISSN: 0021-8707 Standard No.: 10.1016/0021-8707(64)90046-2 doi Subjects--Topical Terms: AdolescentAnti-Asthmatic AgentsAsthmaChildDelayed-Action PreparationsEphedrineHumansPhenobarbitalPlacebosTheophylline