title: Measurement of left ventricular internal diameter by catheterization.
mesh_terms: D000818:Animals; D001011:Aorta; D001794:Blood Pressure; D006328:Cardiac Catheterization; D004285:Dogs; D006352:Heart Ventricles / Q000033:anatomy & histology*; D007545:Isoproterenol / Q000494:pharmacology; D011108:Polymers; D014465:Ultrasonics
chemical_list: D011108:Polymers; D007545:Isoproterenol