Østergaard, Mikkel, Landewé, Robert B., D'Agostino, Maria Antonietta, Tugwell, Peter, Boers, Maarten, Beaton, Dorcas, Boonen, Annelies, Bingham, Clifton O., Choy, Ernest, Conaghan, Philip G., Dougados, Maxime, Duarte, Catia, Furst, Daniel E., Guillemin, Francis, Gossec, Laure, Heiberg, Turid, Van Der Heijde, Désirée M., Hewlett, Sarah, Kirwan, John R., Kvien, Tore K., Mease, Philip J., Simon, Lee, Singh, Jasvinder A., Strand, Vibeke, Wells, George, "Updating the omeract filter: Implications of filter 2.0 to select outcome instruments through assessment of "truth": Content, face, and construct validity", Journal of Rheumatology, 2014