title: Vector analysis of ventricular function: an approach to the study of myocardial performance.
mesh_terms: D001011:Aorta / Q000502:physiology; D001783:Blood Flow Velocity; D001794:Blood Pressure; D001810:Blood Volume; D004582:Electronics, Medical; D006321:Heart / Q000502:physiology*; D006801:Humans; D014159:Transducers; D014672:Vectorcardiography; D016276:Ventricular Function