RT Journal Article SR Electronic T1 Screening for left ventricular dysfunction: a step too far? JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP ii12 OP ii14 DO 10.1136/heart.88.suppl_2.ii12 VO 88 IS suppl 2 A1 T A McDonagh YR 2002 UL http://heart.bmj.com/content/88/suppl_2/ii12.abstract AB