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Do patients with axial spondyloarthritis with active disease suffer from greater disease burden and work impairment? Results from the International Map of Axial Spondyloarthritis (IMAS) Marco Garrido-Cumbrera, Denis Poddubnyy, Fernando Sommerfleck, Christine Bundy, Souzi Makri, José Correa-Fernández, Shashank Akerkar, Jo Lowe, Elie Karam, Victoria Navarro-Compán