PT - JOURNAL ARTICLE AU - A Good TI - Clinical research DP - 2004 Mar 01 TA - Emergency Medicine Journal PG - 268--268 VI - 21 IP - 2 4099 - http://emj.bmj.com/content/21/2/268.2.short 4100 - http://emj.bmj.com/content/21/2/268.2.full SO - Emerg Med J2004 Mar 01; 21