RT Journal Article SR Electronic T1 Reducing violent injury JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP emermed-2011-200545 DO 10.1136/emermed-2011-200545 A1 Geoffrey Hughes YR 2011 UL http://emj.bmj.com/content/early/2011/08/18/emermed-2011-200545.abstract AB