[Experimental study of the superior displacement of the QRS loop].
D000818:Animals; D003408:Cresols / Q000494:pharmacology; D004285:Dogs; D004562:Electrocardiography; D006321:Heart / Q000187:drug effects; D007275:Injections, Intravenous; D007545:Isoproterenol / Q000494:pharmacology; D014672:Vectorcardiography
D003408:Cresols; D007545:Isoproterenol