Quantitative effect of low coronary pressure on  left ventricular performance.
D000818:Animals; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002302:Cardiac Output; D003331:Coronary Vessels; D004285:Dogs; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology