Abstract Number: 609 • 2019 ACR/ARP Annual Meeting
Baseline Characteristics and Natural History of Radiographic versus Non-radiographic Axial Spondyloarthritis: 5 Years Follow-up of the Desir Cohort
Background/Purpose: There is still a debate concerning the concept of non-radiographic (nr-axSpA) axial Spondyloarthritis (e.g. to consider it as a distinct entity from r-axSpA (Ankylosing…