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 492 OP 492 DO 10.1136/emj.2007.050500 VO 24 IS 7 A1 Carley, Simon D YR 2007 UL http://emj.bmj.com/content/24/7/492.1.abstract AB