RT Journal Article SR Electronic T1 Six-target radiofrequency ablation of the genicular nerve for the treatment of chronic knee pain JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2023-104643 DO 10.1136/rapm-2023-104643 A1 Forero, Mauricio A1 Olejnik, Laura J A1 Stager, Sam C YR 2023 UL http://rapm.bmj.com/content/early/2023/06/13/rapm-2023-104643.abstract AB