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 116 OP 116 DO 10.1136/emj.18.2.116 VO 18 IS 2 A1 K Mackway-Jones YR 2001 UL http://emj.bmj.com/content/18/2/116.1.abstract AB