RT Journal Article SR Electronic T1 JournalScan JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1469 OP 1470 DO 10.1136/hrt.2009.177683 VO 95 IS 17 A1 Alistair Lindsay YR 2009 UL http://heart.bmj.com/content/95/17/1469.abstract AB