Study of Potential Clinical and Biologic Predictors of Maintaining Good Response at 1 Year Follow-up, in Patients with Ankylosing Spondylitis Under Dose Reduction of TNFi Treatment - Moreno, Mireia; Pontes, Caridad; Torres, Ferran; Sellas-Fernandez, Agusti; Almirall, Miriam; Carlos Torre-Alonso, Juan; Clavaguera, Teresa; Rodriguez-Lozano, Carlos; Francisco Linares, Luis; Urruticoechea-Arana, Ana; Collantes-Estevez, Eduardo; Morla, Rosa; et al. (Arthritis & Rheumatology, 2017)