Langford CA, Cuthbertson D, Ytterberg SR, Khalidi N, Monach PA, Carette S, Seo P, Moreland LW, Weisman M, Koening CL, Sreih AG, Spiera R, McAlear CA, Warrington KJ, Pagnoux C, McKinnon K, Forbess LJ, Hoffman GS, Borchin R, Krischer JP, Merkel PA. A Randomized, Double-Blind Trial of Abatacept (CTLA-4Ig) for the Treatment of Giant Cell Arteritis. Arthritis Rheumatol. 2017 04; 69(4):837-845.