RT Journal Article SR Electronic T1 Efficacy and safety of tocilizumab in patients with refractory Takayasu arteritis JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e9 OP e9 DO 10.1136/annrheumdis-2017-212838 VO 78 IS 1 A1 Lee, Young Ho A1 Song, Gwan Gyu YR 2019 UL http://ard.bmj.com/content/78/1/e9.abstract AB