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 192 OP 192 DO 10.1136/emj.2004.022806 VO 22 IS 3 A1 Carley, S D YR 2005 UL http://emj.bmj.com/content/22/3/192.1.abstract AB