PT - JOURNAL ARTICLE AU - Iqbal Malik TI - JournalScan DP - 2006 May 01 TA - Heart PG - 719--720 VI - 92 IP - 5 4099 - http://heart.bmj.com/content/92/5/719.short 4100 - http://heart.bmj.com/content/92/5/719.full SO - Heart2006 May 01; 92