PT - JOURNAL ARTICLE ED - , TI - American Society of Regional Anesthesia and Pain Medicine: Annual Spring Meeting & Workshops, April 21-24, 2004, Toronto, Ontario, Canada AID - 10.1136/rapm-00115550-200509000-00013 DP - 2005 Sep 01 TA - Regional Anesthesia & Pain Medicine PG - 497--503 VI - 30 IP - 5 4099 - http://rapm.bmj.com/content/30/5/497.short 4100 - http://rapm.bmj.com/content/30/5/497.full SO - Reg Anesth Pain Med2005 Sep 01; 30