Muscle fiber length: a determinant of left ventricular contraction pattern.
D000818:Animals; D004285:Dogs; D006321:Heart / Q000502:physiology*; D009119:Muscle Contraction; D011433:Propranolol / Q000494:pharmacology; D011651:Pulmonary Artery / Q000601:surgery; D016276:Ventricular Function
D011433:Propranolol