Importance of myocardial reserve in determining changes in heart rate during levarterenol infusion.
D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D009206:Myocardium; D009638:Norepinephrine / Q000494:pharmacology*
D009638:Norepinephrine
HEART/physiology; NOREPINEPHRINE/pharmacology