title: [Ankylosing spondylitis without HL-A B27 antigens].
mesh_terms: D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D013167:Spondylitis, Ankylosing / Q000235:genetics / Q000276:immunology*
chemical_list: D006680:HLA Antigens
vernacular_title: Spondylarthrites ankylosantes sans antigène HLA B27.