RT Journal Article SR Electronic T1 Audit of advanced airway management in UK Emergency Departments following the Fourth National Audit Project of the Royal College of Anaesthetists and Difficult Airway Society JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 427 OP 427 DO 10.1136/emermed-2012-202023 VO 30 IS 5 A1 Louise Davies A1 Jonathan R Benger YR 2013 UL http://emj.bmj.com/content/30/5/427.2.abstract AB