RT Journal Article SR Electronic T1 Response to Dr C Liu JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 385 OP 386 DO 10.1136/rapm-2022-103497 VO 47 IS 6 A1 Philip Peng YR 2022 UL http://rapm.bmj.com/content/47/6/385.2.abstract AB