5AndersonJJ, Baron G, Van der Heijde D, et al. Ankylosing spondylitis assesssment group preliminary definition of shortterm improvement in ankylosing spondylitis[J]. Arthritis Rheum, 2001,44: 1876--1886.
8Resnck D.Articular anatomy and histology.In:Resnick D,ed.Diagnosis of bone and joint disorders.Philadelphia:W.B.Saunders,2002:688-707.
9Taggart AJ, Desai SM, Iveson JM,et al. Computerized tomography of the sacro- iliac joints in the diagnosis of sacro-iliitis. Br J Rheumatol. 1984, 23:258 -266.
10Fam AG, Rubenstein JD, Chin -Sang H, et al. Computed tomography in the diagnosis of early ankylosing spondylitis. Arthritis Rheum. 1985, 28:930 -937.