RT Journal Article SR Electronic T1 Towards evidence based emergency medicine: Best BETs from the Manchester Royal Infirmary JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 285 OP 285 VO 25 IS 5 A1 Simon D Carley YR 2008 UL http://emj.bmj.com/content/25/5/285.1.abstract AB