RT Journal Article SR Electronic T1 Unusual cause of suffocation in an asthmatic adult patient JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 842 OP 842 DO 10.1136/emj.2008.067157 VO 27 IS 11 A1 M A El-Tarchichi A1 M F Yafi A1 A H Debek YR 2010 UL http://emj.bmj.com/content/27/11/842.abstract AB