Instrument selection for the ASAS core outcome set for axial spondyloarthritis

Victoria Navarro‐Compán, Anne Boel, Annelies Boonen, Philip J. Mease, Maxime Dougados, Uta Kiltz, Robert Landewé, Xenofon Baraliakos, Wilson Bautista‐Molano, Praveena Chiowchanwisawakit, Hanne Dagfinrud, Lara Fallon, Marco Garrido‐Cumbrera, Lianne S. Gensler, Bassel Elzorkany, Nigil Haroon, Yu Heng Kwan, Pedro Machado, Walter P. Maksymowych, Anna Moltó, Natasha de Peyrecave, Denis Poddubnyy, Mikhail Protopopov, Sofía Ramiro, In‐Ho Song, Salima van Weely, Désirée van der Heijde