RT Journal Article SR Electronic T1 Corrections JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 667 OP 667 DO 10.1136/emermed-2015-204880.24corr1 VO 32 IS 8 YR 2015 UL http://emj.bmj.com/content/32/8/667.abstract AB