title: Hierarchy of supraventricular pacemakers.
mesh_terms: D000818:Animals; D016275:Atrial Function; D004285:Dogs; D004562:Electrocardiography; D006325:Heart Atria / Q000196:embryology; D006329:Heart Conduction System / Q000196:embryology / Q000502:physiology*; D006339:Heart Rate; D006352:Heart Ventricles / Q000196:embryology; D006801:Humans; D012849:Sinoatrial Node / Q000473:pathology / Q000502:physiology; D016276:Ventricular Function