PT - JOURNAL ARTICLE ED - , TI - WEB TOP 10 DP - 2004 Apr 01 TA - Heart PG - 447--447 VI - 90 IP - 4 4099 - http://heart.bmj.com/content/90/4/447.short 4100 - http://heart.bmj.com/content/90/4/447.full SO - Heart2004 Apr 01; 90