22，Dougados M,van der Linden S,Juhlin R,et al.The European Spondyloarthropathy Study Group preliminary criteria for the classification of spondyloarthropathy.Arthritis Rheum,1991;34:1218
33，Amor B,Dougados M,Mijiawa M,et al.Critters de classification des spondyloarthropathies.Rev Rheum,1990;57:85
44，Amor B,Dougados M,Khan MA,et al.Management of refractory ankylosing spondylitis and selected spondyloarthropathies.Rheum Dis Clin North Am,1995;21:117
