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 439 OP 440 VO 25 IS 7 A2 Carley, Simon D YR 2008 UL http://emj.bmj.com/content/25/7/439.1.abstract AB