title: Medical image. Quadricuspid aortic valve: a rare cause of aortic regurgitation.
authors.affiliation: Department of Cardiology, Middlemore Hospital, Private Bag 93311, Otahuhu, Auckland, New Zealand. ljl517@yahoo.co.nz
authors.forename: Jen-Li
authors.initials: JL
authors.lastname: Looi
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Kerr
mesh_terms: D001021:Aortic Valve / Q000002:abnormalities*; D001022:Aortic Valve Insufficiency / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*