title: The spectrum of left ventricular outflow tract obstruction: an overview.
mesh_terms: D000293:Adolescent; D001011:Aorta / Q000503:physiopathology; D001024:Aortic Valve Stenosis / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography; D006352:Heart Ventricles / Q000503:physiopathology*; D006801:Humans; D010701:Phonocardiography