Ankylosing Spondylitis Disease Activity Score (ASDAS): defining cut-off values for disease activity states and improvement scores

Authors: Pedro Machado, Robert Landewé, E. Lie, Tore K Kvien, Jürgen Braun, Daniel Baker, Désirée van der Heijde - Annals of the Rheumatic Diseases 2010 cited by 797