An Assessment in SpondyloArthritis International Society (ASAS)-endorsed definition of clinically important worsening in axial spondyloarthritis based on ASDAS

Citation:
Molto, A., L. Gossec, B. Meghnathi, R. B. M. Landewé, D. van der Heijde, P. Atagunduz, B. K. Elzorkany, N. Akkoc, U. Kiltz, J. Gu, et al., "An Assessment in SpondyloArthritis International Society (ASAS)-endorsed definition of clinically important worsening in axial spondyloarthritis based on ASDAS", ARD (Ann Rheum Dis), 2017.