RT Journal Article SR Electronic T1 Reliability of Radiographic Assessment of Sacroiliac Joints in Patients with Suspected Early Spondyloarthritis: Methodological Issue JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 957 OP 957 DO 10.3899/jrheum.170014 VO 44 IS 6 A1 SIAMAK SABOUR YR 2017 UL http://www.jrheum.org/content/44/6/957.1.abstract AB