RT Journal Article SR Electronic T1 The ASRA Evidence-Based Medicine Assessment of Ultrasound-Guided Regional Anesthesia and Pain Medicine: Executive Summary: Erratum JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 325 OP 325 DO 10.1097/AAP.0b013e3181e1c8d7 VO 35 IS 3 YR 2010 UL http://rapm.bmj.com/content/35/3/325.abstract AB