Instrument selection for the assessment of peripheral arthritis in axial and peripheral spondyloarthritis: an ASAS project.

Ramiro S, Capelusnik D, López-Medina C, Ortolan A, Webers C, Baraliakos X, Bautista-Molano W, Boonen A, Van den Bosch F, Carron P, van Dam M, van Gaalen F, Gensler LS, Gossec L, Hmamouchi I, Kiltz U, Kishimoto M, Lowe J, Machado PM, Navarro-Compán V, Nikiphorou E, Vegas LP, Poddubnyy D, van de Sande M, Sepriano A, Sieper J, Varkas G, Mease P, Landewé R, van der Heijde D, Moltó A