title: Aortic stenosis: the quest for a noninvasive gold standard.
authors.forename: K M
authors.initials: KM
authors.lastname: Kessler
mesh_terms: D001024:Aortic Valve Stenosis / Q000175:diagnosis*; D006328:Cardiac Catheterization; D004452:Echocardiography / Q000639:trends; D015150:Echocardiography, Doppler; D006801:Humans; D012720:Severity of Illness Index