PT - JOURNAL ARTICLE AU - Iqbal Malik TI - JournalScan AID - 10.1136/heart.89.2.239 DP - 2003 Feb 01 TA - Heart PG - 239--240 VI - 89 IP - 2 4099 - http://heart.bmj.com/content/89/2/239.short 4100 - http://heart.bmj.com/content/89/2/239.full SO - Heart2003 Feb 01; 89