PT - JOURNAL ARTICLE ED - BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine TI - CORRECTION DP - 2009 Jul 01 TA - Emergency Medicine Journal PG - 545--545 VI - 26 IP - 7 4099 - http://emj.bmj.com/content/26/7/545.1.short 4100 - http://emj.bmj.com/content/26/7/545.1.full SO - Emerg Med J2009 Jul 01; 26