RT Journal Article SR Electronic T1 Commentary JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 105 OP 106 DO 10.1136/heart.87.2.105 VO 87 IS 2 A1 A Ågård A1 G Hermerén A1 J Herlitz YR 2002 UL http://heart.bmj.com/content/87/2/105.abstract AB