RT Journal Article SR Electronic T1 Critical appraisal for emergency medicine: 6 Systematic reviews JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 114 OP 116 DO 10.1136/emj.2007.057356 VO 26 IS 2 A1 S Goodacre YR 2009 UL http://emj.bmj.com/content/26/2/114.abstract AB