PT - JOURNAL ARTICLE ED - , TI - Web Top 10 DP - 2005 Oct 01 TA - Heart PG - 1337--1337 VI - 91 IP - 10 4099 - http://heart.bmj.com/content/91/10/1337.short 4100 - http://heart.bmj.com/content/91/10/1337.full SO - Heart2005 Oct 01; 91