title: New technique for determining instantaneous myocardial force-velocity relations in the intact heart.
mesh_terms: D000669:Amplifiers, Electronic; D000818:Animals; D001013:Aorta, Thoracic / Q000502:physiology; D001696:Biomechanical Phenomena; D002122:Calcium Chloride / Q000494:pharmacology; D006328:Cardiac Catheterization; D004285:Dogs; D004548:Elasticity; D005934:Glucagon / Q000494:pharmacology; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D008722:Methods; D009638:Norepinephrine / Q000494:pharmacology; D010424:Pentobarbital / Q000494:pharmacology; D011312:Pressure; D013997:Time Factors; D016276:Ventricular Function
chemical_list: D005934:Glucagon; D010424:Pentobarbital; D002122:Calcium Chloride; D009638:Norepinephrine