Abstract Number: 691 • 2015 ACR/ARHP Annual Meeting
Standards for the Classification of Non-Radiographic Axial Spondyloarthritis: A European Real World Study
Background/Purpose: Classification of non-radiographic axial spondyloarthritis (nr-axSpA) requires the presence of Assessment of Spondyloarthritis international Society (ASAS) criteria for AxSpA, without radiologic evidence of sacroiliitis…