title: Rare cause of pure aortic regurgitation: congenital quadricuspid aortic valve.
authors: J M
authors: JM
authors: Paemelaere
authors: B
authors: B
authors: Desveaux
authors: L
authors: L
authors: Maillard
authors: L
authors: L
authors: Quilliet
authors: P H
authors: PH
authors: Raynaud
mesh_terms: D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000002:abnormalities*; D001022:Aortic Valve Insufficiency / Q000209:etiology* / Q000601:surgery; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male