RT Journal Article SR Electronic T1 Letter to the editor: regarding a recent publication on the association between abuse and adverse effects of analgesic medications JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 462 OP 463 DO 10.1136/rapm-2020-101785 VO 46 IS 5 A1 Zhongxi Zheng A1 Kathryn Curtis A1 Anuj Bhatia YR 2021 UL http://rapm.bmj.com/content/46/5/462.abstract AB