title: Assessment of the transvalvular pressure gradient in aortic stenosis.
authors.affiliation: Evanston Northwestern Healthcare, Evanston, Illinois, USA.
authors.forename: Ted
authors.initials: T
authors.lastname: Feldman
mesh_terms: D001021:Aortic Valve / Q000503:physiopathology*; D001024:Aortic Valve Stenosis / Q000175:diagnosis* / Q000503:physiopathology*; D006328:Cardiac Catheterization / Q000295:instrumentation*; D006801:Humans; D011312:Pressure; D012720:Severity of Illness Index