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THURSDAY, 14 JUNE 2018
Methods: A large international collaboration collected BASDAI, CRP, HLA-B27 status and sacroiliac joints (SIJ) and spine radiographs. These were read centrally by two blinded readers using consensus on the modified New York criteria, mSASSS and PASRI. AP spine radiographs were examined for symmetry (score difference !2 between sides) and morphology of syndesmophytes (typical marginal vs atypical chunky/non-marginal) were compared.doi:10.1136/annrheumdis-2018-eular.7093 fatcat:clswvb6rzzc2ll7h2apqysie4u