PT - JOURNAL ARTICLE ED - , TI - Sophia DP - 2008 Apr 01 TA - Emergency Medicine Journal PG - 248--248 VI - 25 IP - 4 4099 - http://emj.bmj.com/content/25/4/248.short 4100 - http://emj.bmj.com/content/25/4/248.full SO - Emerg Med J2008 Apr 01; 25