RT Journal Article SR Electronic T1 Review of the role of non-invasive ventilation in the emergency department JF Journal of Accident & Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 79 OP 85 DO 10.1136/emj.17.2.79 VO 17 IS 2 A1 Anthony M Cross YR 2000 UL http://emj.bmj.com/content/17/2/79.abstract AB