RT Journal Article SR Electronic T1 The Injectionists JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 305 OP 306 DO 10.1016/j.rapm.2004.05.001 VO 29 IS 4 A1 Rathmell, James P. YR 2004 UL http://rapm.bmj.com/content/29/4/305.abstract AB