title: Heart tone.
mesh_terms: D000804:Angiotensin II / Q000494:pharmacology; D000818:Animals; D004731:Endotoxins / Q000494:pharmacology; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D006331:Heart Diseases / Q000175:diagnosis; D006334:Heart Function Tests; D006801:Humans; D007545:Isoproterenol / Q000494:pharmacology; D009638:Norepinephrine / Q000494:pharmacology; D010138:Pacemaker, Artificial; D011433:Propranolol / Q000494:pharmacology
chemical_list: D004731:Endotoxins; D000804:Angiotensin II; D011433:Propranolol; D007545:Isoproterenol; D009638:Norepinephrine