PT - JOURNAL ARTICLE ED - , TI - JournalScan DP - 2007 Oct 01 TA - Heart PG - 1316--1318 VI - 93 IP - 10 4099 - http://heart.bmj.com/content/93/10/1316.short 4100 - http://heart.bmj.com/content/93/10/1316.full SO - Heart2007 Oct 01; 93