Myocardial response changes after short loading periods.
D000818:Animals; D001794:Blood Pressure; D002302:Cardiac Output; D003331:Coronary Vessels; D004285:Dogs; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D008722:Methods; D009119:Muscle Contraction; D016276:Ventricular Function