RT Journal Article SR Electronic T1 Chest pain evaluation units JF Journal of Accident & Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 237 OP 240 DO 10.1136/emj.17.4.237 VO 17 IS 4 A1 Gareth Quin YR 2000 UL http://emj.bmj.com/content/17/4/237.abstract AB