RT Journal Article SR Electronic T1 JournalScan JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 362 OP 363 DO 10.1136/emj.2005.024158 VO 22 IS 5 A1 Wyatt, J P A1 Lee, J YR 2005 UL http://emj.bmj.com/content/22/5/362.abstract AB