RT Journal Article SR Electronic T1 In reply to Schnabel et al. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 72 OP 73 DO 10.1136/rapm-2021-102725 VO 47 IS 1 A1 Abdallah, Faraj W A1 Hussain, Nasir A1 Brull, Richard YR 2022 UL http://rapm.bmj.com/content/47/1/72.abstract AB