title: A quadricupsid aortic valve.
authors.affiliation: Department of Pathology, University Health Network and University of Toronto, Toronto, Ontario, Canada.
authors.forename: Jagdish
authors.initials: J
authors.lastname: Butany
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Collins
authors.forename: Michael
authors.initials: M
authors.lastname: Duchnay
authors.forename: Dina
authors.initials: D
authors.lastname: El Demellawy
authors.forename: Jacek
authors.initials: J
authors.lastname: Karski
authors.forename: Anthony C
authors.initials: AC
authors.lastname: Ralph-Edwards
mesh_terms: D001021:Aortic Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging* / Q000601:surgery; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography