RT Journal Article SR Electronic T1 For whom the bell tolls JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 150 OP 150 DO 10.1136/emj.2007.046144 VO 24 IS 3 A1 Geoffrey Hughes YR 2007 UL http://emj.bmj.com/content/24/3/150.abstract AB