PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/heartjnl-2012-302876corr1 DP - 2013 Feb 15 TA - Heart PG - 287--287 VI - 99 IP - 4 4099 - http://heart.bmj.com/content/99/4/287.2.short 4100 - http://heart.bmj.com/content/99/4/287.2.full SO - Heart2013 Feb 15; 99