title: Crossing the aortic valve in severe aortic stenosis: no longer acceptable?
authors.forename: John
authors.initials: J
authors.lastname: Chambers
authors.forename: David
authors.initials: D
authors.lastname: Bach
authors.forename: Jean
authors.initials: J
authors.lastname: Dumesnil
authors.forename: Catherine
authors.initials: C
authors.lastname: Otto
authors.forename: Pravin
authors.initials: P
authors.lastname: Shah
authors.forename: James
authors.initials: J
authors.lastname: Thomas
mesh_terms: D001021:Aortic Valve / Q000000981:diagnostic imaging* / Q000473:pathology; D001024:Aortic Valve Stenosis / Q000145:classification / Q000175:diagnosis / Q000000981:diagnostic imaging*; D006328:Cardiac Catheterization / Q000009:adverse effects; D006801:Humans; D014463:Ultrasonography