title: Surgical pitfalls of the quadricuspid aortic valve.
authors: Oktay
authors: O
authors: Tutarel
authors: Philipp
authors: P
authors: Roentgen
authors: Mechthild
authors: M
authors: Westhoff-Bleck
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis / Q000601:surgery; D001021:Aortic Valve / Q000002:abnormalities* / Q000601:surgery*; D003330:Coronary Vessel Anomalies / Q000175:diagnosis*; D006330:Heart Defects, Congenital / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011300:Preoperative Care / Q000379:methods; D011379:Prognosis; D018570:Risk Assessment