5Lawson TL, Foley WD, Carrera GF, et al. The sacroiliac joint:anatomic, plain roentgenographic, and computed tomoraphic analysis.J Comput Assist Tomogr, 1982,6:307-314.
6Ceijier M,Sihlbom H,Gothlin JH,et al. The role of CT in the diagnosis of sacroiliitis. Acta Radiol, 1998,39:265-268,.
7Bollow M,Braun J,Taupitz M, et al. CT-guided intraarticular corticosteroid injection into the sacroiliac joint in patients with spondyloarthropathy: indication follow-up by dynamic-enhanced MRI. J Comput Assist Tomogr, 1996,20 : 516-521.
8Bruan J , Bollow M , Seyrekbasan F , et al. Computed tomography guided corticosteroid injection of the sacroiliac joint in patients with spondyloarthropathy with sacroiliitis: clinical outcome and follow-up by dynamic magnetic resonance imaging. J Rheumatol, 1996, 23:659-664.
9Feldtkeller E.Age at disease onset and delayed diagnosis of spondyloarthropathies.Z Rheumatol.1999,58 (1):21-30.
10Calin A,Elswood J,Rigg S,et al.Ankylosing spondylitis-an analytical review of 1500 patients:the changing pattern of disease.J Rheumatol.1988,15 (8):1234-1238.
