PT - JOURNAL ARTICLE ED - , TI - eHEART: <em><a href="http://www.heartjnl.com">www.heartjnl.com</a></em> AID - 10.1136/heart.89.8.833 DP - 2003 Aug 01 TA - Heart PG - 833--833 VI - 89 IP - 8 4099 - http://heart.bmj.com/content/89/8/833.short 4100 - http://heart.bmj.com/content/89/8/833.full SO - Heart2003 Aug 01; 89