RT Journal Article SR Electronic T1 NOTICE OF DUPLICATE PUBLICATION JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 867 OP 867 DO 10.1136/emj.2007.053819corr1 VO 24 IS 12 YR 2007 UL http://emj.bmj.com/content/24/12/867.3.abstract AB