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Arthritis Res Ther. 2011;13:R95.","journal-title":"Arthritis Res Ther"},{"key":"644_CR57","doi-asserted-by":"crossref","first-page":"1647","DOI":"10.1002\/art.24568","volume":"60","author":"H Shen","year":"2009","unstructured":"Shen H, Goodall JC, Hill Gaston JS. Frequency and phenotype of peripheral blood Th17 cells in ankylosing spondylitis and rheumatoid arthritis. Arthritis Rheum. 2009;60:1647\u201356.","journal-title":"Arthritis Rheum"},{"key":"644_CR58","doi-asserted-by":"crossref","first-page":"314","DOI":"10.1038\/ni.1698","volume":"10","author":"MJ McGeachy","year":"2009","unstructured":"McGeachy MJ, Chen Y, Tato CM, Laurence A, Joyce-Shaikh B, Blumenschein WM, et al. The interleukin 23 receptor is essential for the terminal differentiation of interleukin 17-producing effector T helper cells in vivo. Nat Immunol. 2009;10:314\u201324.","journal-title":"Nat Immunol"},{"key":"644_CR59","doi-asserted-by":"crossref","unstructured":"van Tok M, van Duivenvoorde L, et al. Anti-IL17A treatment blocks new bone formation in experimental spondyloarthritis in HLA-B27 transgenic rats. Arthritis Rheumatol. 2015; 67 (suppl 10) [abstract].","DOI":"10.1136\/annrheumdis-2015-eular.3382"},{"key":"644_CR60","doi-asserted-by":"crossref","unstructured":"\u2022\u2022 Braun J, Baraliakos X, Deodhar A, Baeten D, Sieper J, Emery P, Readie A, Martin R, Mpofu S, Richards HB. Effect of secukinumab on clinical and radiographic outcomes in ankylosing spondylitis: 2-year results from the randomised phase III MEASURE 1 study. Ann Rheum Dis. 2016 Dec 13. The paper describes the results from the international phase III MEASURE 1 study which showed low mean progression rates in spinal radiographic change with the anti-interleukin 17A antibody, secukinumab in patients with AS.","DOI":"10.1136\/annrheumdis-2016-209730"},{"key":"644_CR61","first-page":"60","volume":"5","author":"JW Boersma","year":"1976","unstructured":"Boersma JW. Retardation of ossification of the lumbar vertebral column in ankylosing spondylitis by means of phenylbutazone. Scand J Rheumatol. 1976;5:60\u20134.","journal-title":"Scand J Rheumatol"},{"key":"644_CR62","doi-asserted-by":"crossref","first-page":"1756","DOI":"10.1002\/art.21054","volume":"52","author":"A Wanders","year":"2005","unstructured":"Wanders A, Heijde D, Landewe R, et al. Nonsteroidal antiinflammatory drugs reduce radiographic progression in patients with ankylosing spondylitis: a randomized clinical trial. Arthritis Rheum. 2005;52:1756\u201365.","journal-title":"Arthritis Rheum"},{"key":"644_CR63","doi-asserted-by":"crossref","first-page":"1616","DOI":"10.1136\/annrheumdis-2011-201252","volume":"71","author":"D Poddubnyy","year":"2012","unstructured":"Poddubnyy D, Rudwaleit M, Haibel H, et al. Effect of nonsteroidal anti-inflammatory drugs on radiographic spinal progression in patients with axial spondyloarthritis: results from the German Spondyloarthritis Inception Cohort. Ann Rheum Dis. 2012;71:1616\u201322.","journal-title":"Ann Rheum Dis"},{"key":"644_CR64","doi-asserted-by":"crossref","first-page":"765","DOI":"10.1016\/j.berh.2014.10.008","volume":"28","author":"RJ Lories","year":"2014","unstructured":"Lories RJ, Haroon N. Bone formation in axial spondyloarthritis. Best Pract Res Clin Rheumatol. 2014;28:765\u201377.","journal-title":"Best Pract Res Clin Rheumatol"},{"key":"644_CR65","doi-asserted-by":"crossref","first-page":"1438","DOI":"10.1136\/annrheumdis-2015-207897","volume":"75","author":"J Sieper","year":"2016","unstructured":"\u2022\u2022 Sieper J, Listing J, Poddubnyy D, et al. Effect of continuous versus on-demand treatment of ankylosing spondylitis with diclofenac over 2 years on radiographic progression of the spine: results from a randomized multicenter trial (ENRADAS). Ann Rheum Dis. 2016;75:1438\u201343. 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