Influence of sympathetic stimulation and catecholamines on ectopic impulse formation in the ventricles of the dog.
D000818:Animals; D002395:Catecholamines / Q000494:pharmacology*; D004285:Dogs; D006321:Heart / Q000502:physiology*; D006352:Heart Ventricles; D006801:Humans; D013564:Sympathetic Nervous System / Q000502:physiology*
D002395:Catecholamines
CATECHOLAMINES/pharmacology; HEART/physiology; SYMPATHETIC NERVOUS SYSTEM/physiology