title: Immunopathological alterations in patients with seronegative spondarthritis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000936:Antigen-Antibody Complex / Q000032:analysis; D016918:Arthritis, Reactive / Q000276:immunology*; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D003165:Complement System Proteins / Q000378:metabolism; D005260:Female; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000276:immunology*
chemical_list: D000936:Antigen-Antibody Complex; D007136:Immunoglobulins; D003165:Complement System Proteins