title: The effect of heart rate, acetylcholine, and vagal stimulation on antegrade and retograde His-Purkinje conduction in the intact heart.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000771:Anesthesia, Intravenous; D000818:Animals; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D004567:Electrodes, Implanted; D006321:Heart / Q000502:physiology; D006329:Heart Conduction System / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects*; D010138:Pacemaker, Artificial; D010424:Pentobarbital / Q000008:administration & dosage; D013268:Stimulation, Chemical; D013997:Time Factors; D014630:Vagus Nerve / Q000033:anatomy & histology / Q000502:physiology*
chemical_list: D010424:Pentobarbital; D000109:Acetylcholine