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. 2020 Feb 5;6(1):e001093. doi: 10.1136/rmdopen-2019-001093

Figure 1.

Figure 1

Overview of follow-up MRI over 5 years (A) and 2 years (B) of either the SIJ, spine or both. Reading of T1-weighted sequence is present from all three readers. *One missing MRI-SIJ short tau inversion recovery sequence in MRI. SIJ, sacroiliac joint.