title: Studies on the sympathetic nervous system: T wave vectorcardiogram in cattle.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002417:Cattle / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D008297:Male; D009638:Norepinephrine / Q000494:pharmacology; D010275:Parasympathetic Nervous System / Q000502:physiology; D013564:Sympathetic Nervous System / Q000502:physiology*; D014672:Vectorcardiography / Q000662:veterinary*
chemical_list: D001285:Atropine; D009638:Norepinephrine