title: Echocardiographic assessment of left ventricular outflow tract obstruction.
mesh_terms: D001020:Aortic Stenosis, Subvalvular / Q000175:diagnosis; D001024:Aortic Valve Stenosis / Q000151:congenital / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis; D004452:Echocardiography; D006349:Heart Valve Diseases / Q000175:diagnosis*; D006801:Humans