Paired electrical stimulation and the maximal contractile response of the ventricle.
D000818:Animals; D001021:Aortic Valve / Q000187:drug effects; D001794:Blood Pressure / Q000187:drug effects; D002118:Calcium / Q000494:pharmacology; D002415:Cats; D004285:Dogs; D004558:Electric Stimulation; D006334:Heart Function Tests; D009119:Muscle Contraction / Q000502:physiology; D009638:Norepinephrine / Q000494:pharmacology; D010210:Papillary Muscles / Q000502:physiology; D016276:Ventricular Function
D002118:Calcium; D009638:Norepinephrine