PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/openhrt-2014-000134corr1 DP - 2014 Sep 01 TA - Open Heart PG - e000134corr1 VI - 1 IP - 1 4099 - http://openheart.bmj.com/content/1/1/e000134corr1.short 4100 - http://openheart.bmj.com/content/1/1/e000134corr1.full SO - Open Heart2014 Sep 01; 1