RT Journal Article SR Electronic T1 Toward precision regional anesthesia: is the PENG block appropriate for all hip fracture surgeries? JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2021-102905 DO 10.1136/rapm-2021-102905 A1 Richard Kim A1 Ban C H Tsui YR 2021 UL http://rapm.bmj.com/content/early/2021/06/21/rapm-2021-102905.abstract AB