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 839 OP 840 DO 10.1136/emj.2008.066886 VO 25 IS 12 A2 Kevin Mackway-Jones YR 2008 UL http://emj.bmj.com/content/25/12/839.2.abstract AB