RT Journal Article SR Electronic T1 eHEART: www.heartjnl.com JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 698 OP 698 DO 10.1136/heart.89.7.698 VO 89 IS 7 YR 2003 UL http://heart.bmj.com/content/89/7/698.abstract AB