RT Journal Article SR Electronic T1 Abstracts in echocardiography 1999 JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP III27 OP III31 DO 10.1136/hrt.82.2008.iii27 VO 82 IS suppl 3 YR 1999 UL http://heart.bmj.com/content/82/suppl_3/III27.abstract AB