RT Journal Article SR Electronic T1 Seven enigmatic dwarfs JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 584 OP 584 DO 10.1136/heart.84.6.584 VO 84 IS 6 A1 STÖLLBERGER, CLAUDIA A1 ERNST, GÜNTHER A1 FINSTERER, JOSEF YR 2000 UL http://heart.bmj.com/content/84/6/584.abstract AB