PT - JOURNAL ARTICLE ED - , TI - WEB TOP 10 DP - 2006 Mar 01 TA - Heart PG - 400--400 VI - 92 IP - 3 4099 - http://heart.bmj.com/content/92/3/400.short 4100 - http://heart.bmj.com/content/92/3/400.full SO - Heart2006 Mar 01; 92