Northcote, R J Left ventricular function and beta-blockers: does intrinsic sympathomimetic activity have any influence during chronic therapy? [electronic resource] - Cardiovascular drugs and therapy Nov 1988 - 549-60 p. digital Publication Type: Journal Article ISSN: 0920-3206 Standard No.: 10.1007/BF00051195 doi Subjects--Topical Terms: Adrenergic beta-Antagonists--pharmacologyAdultAgedElectrocardiographyHumansMaleMiddle AgedSympathomimeticsVentricular Function, Left--drug effects