PT - JOURNAL ARTICLE ED - Hughes, Geoff TI - Primary survey AID - 10.1136/emj.2009.080051 DP - 2009 Aug 01 TA - Emergency Medicine Journal PG - 547--547 VI - 26 IP - 8 4099 - http://emj.bmj.com/content/26/8/547.short 4100 - http://emj.bmj.com/content/26/8/547.full SO - Emerg Med J2009 Aug 01; 26