RT Journal Article SR Electronic T1 Adult difficult airway equipment in the emergency department JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 997 OP 997 DO 10.1136/emermed-2011-200418 VO 28 IS 11 A1 Wei Shyan Siow A1 Dominic Sacco YR 2011 UL http://emj.bmj.com/content/28/11/997.2.abstract AB