RT Journal Article SR Electronic T1 Entrapment in an unstable structure JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 1011 OP 1012 DO 10.1136/emermed-2012-201932 VO 29 IS 12 A1 S P Le Clerc A1 W Bateman A1 L Bevan A1 David J Lockey YR 2012 UL http://emj.bmj.com/content/29/12/1011.abstract AB