Sonoda, Makoto A larger aortic annulus causes aortic regurgitation and a smaller aortic annulus causes aortic stenosis in bicuspid aortic valve. [electronic resource] - Echocardiography (Mount Kisco, N.Y.) Mar 2008 - 242-8 p. digital Publication Type: Journal Article ISSN: 0742-2822 Standard No.: 10.1111/j.1540-8175.2007.00588.x doi Subjects--Topical Terms: Aorta--diagnostic imagingAortic Valve--abnormalitiesAortic Valve Insufficiency--complicationsAortic Valve Stenosis--complicationsEchocardiographyEchocardiography, TransesophagealFemaleHumansMaleMiddle Aged