PT - JOURNAL ARTICLE AU - Nigel Brayley AU - Cheryl Day AU - Jonathan Marrow AU - Janet Porter TI - Casemix Healthcare Resource Group update AID - 10.1136/emj.17.1.75-a DP - 2000 Jan 01 TA - Journal of Accident & Emergency Medicine PG - 75--75 VI - 17 IP - 1 4099 - http://emj.bmj.com/content/17/1/75.2.short 4100 - http://emj.bmj.com/content/17/1/75.2.full SO - Arch Emerg Med2000 Jan 01; 17