PT - JOURNAL ARTICLE AU - M-J Bair AU - I-T Lin AU - H-L Chen AU - C-H Lee TI - Unusual cause of acute upper airway obstruction AID - 10.1136/emj.2009.072371 DP - 2010 Mar 01 TA - Emergency Medicine Journal PG - 225--225 VI - 27 IP - 3 4099 - http://emj.bmj.com/content/27/3/225.short 4100 - http://emj.bmj.com/content/27/3/225.full SO - Emerg Med J2010 Mar 01; 27