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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Semin Arthritis Rheum. 2014 Mar 29;44(1):20–24. doi: 10.1016/j.semarthrit.2014.03.007

Figure 3.

Figure 3

AP and lateral lumbar spine radiograph completed at the time of diagnosis of AS, showing fused SI joints, lumbar spine vertebral bodies, and facet joints