title: Echocardiographic observations in idiopathic hypertrophic subaortic stenosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001021:Aortic Valve; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis / Q000188:drug therapy / Q000503:physiopathology*; D004452:Echocardiography; D005500:Follow-Up Studies; D006321:Heart / Q000503:physiopathology; D006325:Heart Atria; D006343:Heart Septal Defects; D006346:Heart Septum / Q000503:physiopathology; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008943:Mitral Valve; D011433:Propranolol / Q000627:therapeutic use
chemical_list: D011433:Propranolol