RT Journal Article SR Electronic T1 Acute Pain Management JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 458 OP 458 DO 10.1097/AAP.0b013e3181e8a38f VO 35 IS 5 A1 Russell R. Kinder YR 2010 UL http://rapm.bmj.com/content/35/5/458.abstract AB