Echocardiographic assessment of discrete subaortic stenosis in childhood.
D000293:Adolescent; D001020:Aortic Stenosis, Subvalvular / Q000175:diagnosis* / Q000503:physiopathology; D001021:Aortic Valve / Q000503:physiopathology*; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography; D005069:Evaluation Studies as Topic; D006801:Humans; D007223:Infant; D009200:Myocardial Contraction; D012044:Regression Analysis