title: HL-A W27--a clue to the diagnosis and pathogenesis of Reiter's syndrome.
mesh_terms: D001170:Arthritis, Infectious / Q000175:diagnosis; D016918:Arthritis, Reactive / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D044383:Black People; D003601:Cytotoxicity Tests, Immunologic; D003937:Diagnosis, Differential; D006069:Gonorrhea / Q000175:diagnosis; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D008214:Lymphocytes / Q000276:immunology; D008297:Male; D013167:Spondylitis, Ankylosing / Q000209:etiology; D044465:White People
chemical_list: D006649:Histocompatibility Antigens