RT Journal Article SR Electronic T1 British Cardiac Society newsletter JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 596 OP 596 DO 10.1136/hrt.71.6.596 VO 71 IS 6 A1 D John Parker A1 John G F Cleland YR 1994 UL http://heart.bmj.com/content/71/6/596.1.abstract AB