RT Journal Article SR Electronic T1 John Hamer JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 697 OP 697 DO 10.1136/hrt.2004.037010 VO 90 IS 6 A1 D Chamberlain A1 T R D Shaw YR 2004 UL http://heart.bmj.com/content/90/6/697.abstract AB