RT Journal Article SR Electronic T1 Images in cardiology. Non-invasive detection of quadricuspid aortic valve. JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 87 OP 87 DO 10.1136/hrt.78.1.87 VO 78 IS 1 A1 Kajinami, K. A1 Takekoshi, N. A1 Mabuchi, H. YR 1997 UL http://heart.bmj.com/content/78/1/87.abstract AB