RT Journal Article SR Electronic T1 The Purley train crash: procedural difficulties. JF Archives of Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 130 OP 133 DO 10.1136/emj.9.2.130 VO 9 IS 2 A1 S R Ebbs A1 N J Fothergill A1 K Hashemi YR 1992 UL http://emj.bmj.com/content/9/2/130.abstract AB