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 663 OP 663 DO 10.1136/emj.2006.27797corr1 VO 23 IS 8 YR 2006 UL http://emj.bmj.com/content/23/8/663.1.abstract AB