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. 2020 May 17;59(12):3776–3783. doi: 10.1093/rheumatology/keaa155

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© The Author(s) 2020. Published by Oxford University Press on behalf of the British Society for Rheumatology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Fig. 3 — Cumulative probability plot showing 2-year progression of syndesmophytes and facet joint ankylosis

Syndesmophytes were scored with the Computed Tomography Syndesmophyte Score (CTSS). Facet joint ankylosis scores are mean progression scores of the two readers. The plot is ordered by the facet joint ankylosis progression scores. Dots and triangles on the same location on the X-axis belong to the same patient. The scale on the left side of the figure belongs to the facet joint ankylosis progression scores, the scale on the right belongs to the CTSS progression scores.