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 813 OP 813 VO 26 IS 11 A2 Simon Carley YR 2009 UL http://emj.bmj.com/content/26/11/813.1.abstract AB