title: Echocardiographic assessment of left ventricular outflow obstruction.
mesh_terms: D000328:Adult; D000368:Aged; D001020:Aortic Stenosis, Subvalvular / Q000145:classification / Q000175:diagnosis*; D001021:Aortic Valve / Q000002:abnormalities; D001024:Aortic Valve Stenosis / Q000151:congenital / Q000175:diagnosis*; D002114:Calcinosis / Q000175:diagnosis; D009202:Cardiomyopathies / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis*; D002648:Child; D004452:Echocardiography; D006439:Hemodynamics; D006801:Humans