Lopez-Diaz MJ, Llorca J, Gonzalez-Juanatey C, Pe a-Sagredo JL, Martin J, Gonzalez-Gay MA. The erythrocyte sedimentation rate is as- sociated with the development of visual complications in biopsy-proven giant cell arteritis. Semin Arthritis Rheum. 2008;38:116 123. doi: 680. Fern ndez-Fern ndez E, Monjo-Henry I, Bonilla G, Plasencia C, Miranda-Car s ME, Balsa A, De Miguel E. False positives in the ultra- sound diagnosis of giant cell arteritis: some diseases can also show the halo sign. Rheumatology (Oxford). 2020;59:2443 2447. doi: 10.1093/ 681. van der Geest KSM, Borg F, Kayani A, Paap D, Gondo P, Schmidt W, Luqmani RA, Dasgupta B. Novel ultrasonographic Halo Score for gi- ant cell arteritis: assessment of diagnostic accuracy and associa- tion with ocular ischaemia. Ann Rheum Dis. 2020;79:393 399. doi: 682. Mahr AD, Jover JA, Spiera RF, Hern ndez-Garc a C, Fern ndez-Guti rrez B, Lavalley MP, Merkel PA. Adjunctive methotrexate for treatment of gi- ant cell arteritis: an individual patient data meta-analysis. Arthritis Rheum. 683. Stone JH, Tuckwell K, Dimonaco S, Klearman M, Aringer M, Blockmans D, Brouwer E, Cid MC, Dasgupta B, Rech J, et al. Trial of tocilizumab in giant-cell 684. Villiger PM, Adler S, Kuchen S, Wermelinger F, Dan D, Fiege V, B tikofer L, Seitz M, Reichenbach S. Tocilizumab for induction and maintenance of remission in giant cell arteritis: a phase 2, randomised, double-blind, placebo-controlled trial. Lancet. 2016;387:1921 1927. doi: 10.1016/ 685. Onen F, Akkoc N. Epidemiology of Takayasu arteritis. Presse Med. 686. Bond KM, Nasr D, Lehman V, Lanzino G, Cloft HJ, Brinjikji W. Intracranial and extracranial neurovascular manifestations of Takayasu arteritis. AJNR Am J Neuroradiol. 2017;38:766 772. doi: 10.3174/ajnr.A5095 of glucocorticoid-resistant or relapsing Takayasu arteritis with methotrex- ate. Arthritis Rheum. 1994;37:578 582. doi: 10.1002/art.1780370420 688. 