title: [Value of the search of HL-A W27 group in the diagnosis of mild or atypical forms of ankylosing spondylarthritis without radiological signs].
mesh_terms: D000328:Adult; D001416:Back Pain / Q000209:etiology; D001799:Blood Sedimentation; D003937:Diagnosis, Differential; D005260:Female; D006680:HLA Antigens; D006801:Humans; D007500:Iritis / Q000209:etiology; D008161:Lumbosacral Region; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012445:Sacrococcygeal Region; D013167:Spondylitis, Ankylosing / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology
chemical_list: D006680:HLA Antigens
vernacular_title: Intéret de la recherche du groupe HL-A W 27 pour le diagnositc des formes frustes ou atypiques de spondylarthrite ankylosante sans signes radiologiques