1van der Heijde D, Braun J, Deodhar A, et al. Modified stoke ankylosing spondylitis spinal score as an outcome measure to assess the impact of treatment on structural progression in ankylosing spondylitis. Rheumatology(Oxford). 2019;58(3):388-400. http://dx.doi.org/10.1093/rheumatology/key128
2van der Heijde D, Østergaard M, Reveille JD, et al. Spinal radiographic progression and predictors of progression in patients with radiographic axial spondyloarthritis receiving ixekizumab over 2 years. Published online December 1, 2021. J Rheum. http://dx.doi.org/10.3899/jrheum.210471
3van der Heijde D, Østergaard M, Reveille JD, et al. Evaluation of spinal radiographic progression in patients with radiographic axial spondyloarthritis receiving ixekizumab therapy over 2 years. Poster presented at: European Alliance of Associations for Rheumatology(Virtual); June 2-5, 2021.