title: HL-A antigen 27 and reactive arthritis.
mesh_terms: D001170:Arthritis, Infectious / Q000209:etiology / Q000235:genetics / Q000276:immunology*; D005260:Female; D006069:Gonorrhea / Q000150:complications; D006648:Histocompatibility; D006649:Histocompatibility Antigens; D006801:Humans; D008297:Male; D010326:Pasteurella Infections / Q000209:etiology / Q000235:genetics / Q000276:immunology
chemical_list: D006649:Histocompatibility Antigens