title: Doppler echocardiographic measurement of outflow tract gradient in hypertrophic cardiomyopathy.
authors.forename: T J
authors.initials: TJ
authors.lastname: Ryan
mesh_terms: D001794:Blood Pressure / Q000502:physiology; D002312:Cardiomyopathy, Hypertrophic / Q000503:physiopathology*; D015150:Echocardiography, Doppler; D006801:Humans; D009200:Myocardial Contraction / Q000502:physiology; D013318:Stroke Volume / Q000502:physiology*