title: Heart potentials and myocardial mechanical activity.
mesh_terms: D000818:Animals; D001021:Aortic Valve / Q000502:physiology; D004285:Dogs; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D009132:Muscles / Q000502:physiology*; D009200:Myocardial Contraction