RT Journal Article SR Electronic T1 CORRECTION JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 451 OP 451 DO 10.1136/emj.2006.42887corr1 VO 24 IS 6 YR 2007 UL http://emj.bmj.com/content/24/6/451.2.abstract AB