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