RT Journal Article SR Electronic T1 Reply to Dr Pan: Caution Is Warranted Before Off-label Use of Nerve Block Adjuvants With Marginal Benefit JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 105 OP 106 DO 10.1097/AAP.0000000000000704 VO 43 IS 1 A1 Chong, Matthew A. A1 Berbenetz, Nicolas M. A1 Lin, Cheng A1 Singh, Sudha YR 2018 UL http://rapm.bmj.com/content/43/1/105.abstract AB