title: Autonomic nervous system and control of cardiac rhythm.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000139:chemically induced; D004070:Digitalis; D004983:Ethanolamines / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects* / Q000502:physiology; D006329:Heart Conduction System / Q000187:drug effects*; D009411:Nerve Endings / Q000187:drug effects; D010946:Plants, Medicinal; D010947:Plants, Toxic; D013565:Sympatholytics / Q000494:pharmacology*
chemical_list: D004983:Ethanolamines; D013565:Sympatholytics