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 61 OP 61 DO 10.1136/emj.20.1.61 VO 20 IS 1 A1 Mackway-Jones, K YR 2003 UL http://emj.bmj.com/content/20/1/61.1.abstract AB