title: Effect of ventricular premature beats on idioventricular pacemaker activity.
mesh_terms: D000818:Animals; D001784:Blood Gas Analysis; D002425:Cautery; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D004564:Electrocoagulation; D004837:Epinephrine / Q000494:pharmacology; D006327:Heart Block; D006329:Heart Conduction System / Q000187:drug effects / Q000502:physiology*; D006863:Hydrogen-Ion Concentration; D007275:Injections, Intravenous; D008012:Lidocaine / Q000494:pharmacology; D010042:Ouabain / Q000008:administration & dosage / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology
chemical_list: D010042:Ouabain; D008012:Lidocaine; D011433:Propranolol; D004837:Epinephrine