title: Echocardiographic assessment of the effects of surgery and propranolol on the dynamics of outflow obstruction in hypertrophic subaortic stenosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001021:Aortic Valve; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery; D002648:Child; D004452:Echocardiography; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve; D011433:Propranolol / Q000627:therapeutic use*
chemical_list: D011433:Propranolol