PT - JOURNAL ARTICLE AU - Iqbal Malik TI - JournalScan AID - 10.1136/heart.89.5.582 DP - 2003 May 01 TA - Heart PG - 582--584 VI - 89 IP - 5 4099 - http://heart.bmj.com/content/89/5/582.short 4100 - http://heart.bmj.com/content/89/5/582.full SO - Heart2003 May 01; 89