title: PACEMAKER ACTIVITY DURING VAGAL ESCAPE RHYTHMS.
mesh_terms: D006328:Cardiac Catheterization; D004285:Dogs; D004594:Electrophysiology; D006329:Heart Conduction System; D007545:Isoproterenol; D010600:Pharmacology; D010827:Physiology; D012106:Research; D014630:Vagus Nerve
chemical_list: D007545:Isoproterenol
keywords: DOGS; ELECTROPHYSIOLOGY; EXPERIMENTAL LAB STUDY; HEART CATHETERIZATION; HEART CONDUCTION SYSTEM; ISOPROTERENOL; PHARMACOLOGY; PHYSIOLOGY; VAGUS NERVE