PT - JOURNAL ARTICLE ED - , TI - WEB TOP 10 AID - 10.1136/heart.87.1.78 DP - 2002 Jan 01 TA - Heart PG - 78--78 VI - 87 IP - 1 4099 - http://heart.bmj.com/content/87/1/78.short 4100 - http://heart.bmj.com/content/87/1/78.full SO - Heart2002 Jan 01; 87