title: Value of Doppler echocardiography for quantifying valvular stenosis or regurgitation.
authors.affiliation: Department of Medicine, University of Texas Health Science Center, San Antonio 78283.
authors.forename: R A
authors.initials: RA
authors.lastname: O'Rourke
mesh_terms: D001022:Aortic Valve Insufficiency / Q000503:physiopathology; D001024:Aortic Valve Stenosis / Q000503:physiopathology; D006328:Cardiac Catheterization; D004452:Echocardiography; D005069:Evaluation Studies as Topic; D006349:Heart Valve Diseases / Q000503:physiopathology*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000503:physiopathology; D008946:Mitral Valve Stenosis / Q000503:physiopathology