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 470 OP 470 DO 10.1136/emj.2006.037572 VO 23 IS 6 A1 K Mackway-Jones YR 2006 UL http://emj.bmj.com/content/23/6/470.1.abstract AB