PT - JOURNAL ARTICLE ED - , TI - WEB TOP 10 AID - 10.1136/heart.88.6.642 DP - 2002 Dec 01 TA - Heart PG - 642--642 VI - 88 IP - 6 4099 - http://heart.bmj.com/content/88/6/642.short 4100 - http://heart.bmj.com/content/88/6/642.full SO - Heart2002 Dec 01; 88