title: A feedback mechanism responsible for fixed coupling in parasystole.
mesh_terms: D000818:Animals; D001794:Blood Pressure; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D005246:Feedback; D006329:Heart Conduction System / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D010138:Pacemaker, Artificial; D011311:Pressoreceptors; D011433:Propranolol / Q000494:pharmacology; D012849:Sinoatrial Node; D016276:Ventricular Function
chemical_list: D011433:Propranolol