PT - JOURNAL ARTICLE ED - , TI - BET 2 AID - 10.1136/emj.2010.094896 DP - 2010 May 01 TA - Emergency Medicine Journal PG - 394--395 VI - 27 IP - 5 4099 - http://emj.bmj.com/content/27/5/394.short 4100 - http://emj.bmj.com/content/27/5/394.full SO - Emerg Med J2010 May 01; 27