RT Journal Article SR Electronic T1 The “tricolore” sign of heart failure JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 588 OP 588 DO 10.1136/hrt.2004.040667 VO 91 IS 5 A1 H Liptau A1 J Gellissen A1 H Schunkert YR 2005 UL http://heart.bmj.com/content/91/5/588.abstract AB