title: Contractility in the intact heart: progress and problems.
mesh_terms: D001776:Blood Circulation Time; D001783:Blood Flow Velocity; D001795:Blood Pressure Determination; D001811:Blood Volume Determination; D002302:Cardiac Output; D003327:Coronary Disease / Q000503:physiopathology; D005069:Evaluation Studies as Topic; D006321:Heart / Q000502:physiology*; D006334:Heart Function Tests; D006339:Heart Rate; D008954:Models, Biological; D009119:Muscle Contraction; D005082:Physical Exertion