RT Journal Article SR Electronic T1 Sufficient, safe and successful: a lower IPACK (infiltration between the popliteal artery and capsule of the knee) block dose in total knee arthroplasty pathways JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2020-101649 DO 10.1136/rapm-2020-101649 A1 Jorge Mejia A1 Tomás Cuñat A1 Andrew Grant YR 2020 UL http://rapm.bmj.com/content/early/2020/05/19/rapm-2020-101649.abstract AB