RT Journal Article SR Electronic T1 Reply to Dr. Cornish JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 471 OP 471 DO 10.1097/AAP.0b013e3181ef4ba4 VO 35 IS 5 A1 Michael J. Fredrickson A1 Craig M. Ball A1 Adam J. Dalgleish YR 2010 UL http://rapm.bmj.com/content/35/5/471.2.abstract AB