Preliminary core sets or endpoints in ankylosing spondylitis. Assessments in Ankylosing Spondylitis Working Group
van der Heijde D, Bellamy N, Calin A, Dougados M, Khan MA, van der Linden S. Preliminary core sets or endpoints in ankylosing spondylitis. Assessments in Ankylosing Spondylitis Working Group. J Rheumatol 1997;24:2225-9.
Selection of instruments in the core set for DC-ART, SMARD, physical therapy, and clinical record keeping in ankylosing spondylitis. Progress report of the ASAS Working Group. Assessments in Ankylosing Spondylitis
van der Heijde D, Calin A, Dougados M, Khan MA, van der Linden S, Bellamy N. Selection of instruments in the core set for DC-ART, SMARD, physical therapy, and clinical record keeping in ankylosing spondylitis. Progress report of the ASAS Working Group. Assessments in Ankylosing Spondylitis. J Rheumatol 1999;26:951-4.
Ankylosing spondylitis assessment group preliminary definition of short-term improvement in ankylosing spondylitis
Anderson JJ, Baron G, van der Heijde D, Felson DT, Dougados M. Ankylosing spondylitis assessment group preliminary definition of short-term improvement in ankylosing spondylitis. Arthritis Rheum 2001;44:1876-86.
Initiation of biological agents in patients with ankylosing spondylitis: Results of a Delphi study by the ASAS Group
Pham T, van der Heijde D, Calin A, Khan MA, van der Linden S, Bellamy N, et al. Initiation of biological agents in patients with ankylosing spondylitis: results of a Delphi study by the ASAS Group. Ann Rneum Dis 2003;62:812-16.
International ASAS consensus statement or the use of anti-tumour necrosis factor agents in patients with ankylosing spondylitis
Braun J, Pham T, Sieper J, Davis J, van der Linden S, Dougados M, ASAS Working Group, et al. International ASAS consensus statement (or the use of anti-tumour necrosis factor agents in patients with ankylosing spondylitis. Ann Rneum Dis 2003;62:817-24.
Ankylosing spondylitis: Plenary discussion and results of voting on selection of domains and some specific instruments
van der Heijde D, van der Linden S, Dougados M, Bellamy N, Russell AS, Edmonds J. Ankylosing spondylitis: plenary discussion and results of voting on selection of domains and some specific instruments. J Rheumatol 1999;26:1003-5.