title: A trial of non-invasive diagnosis of muscular subaortic stenosis by the impedance method.
mesh_terms: D002302:Cardiac Output; D002307:Cardiography, Impedance / Q000379:methods*; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis*; D006801:Humans; D010992:Plethysmography, Impedance / Q000379:methods*; D011433:Propranolol; D013318:Stroke Volume
chemical_list: D011433:Propranolol