title: Studies on myocardial contractility--maxV CE  measured with usual cardiac catheters.
mesh_terms: D000818:Animals; D001794:Blood Pressure; D006328:Cardiac Catheterization / Q000295:instrumentation*; D004285:Dogs; D006321:Heart / Q000502:physiology*; D008722:Methods; D009119:Muscle Contraction; D014159:Transducers; D016276:Ventricular Function