The inherited antigen (HL-A 27) and arthritis.
D001168:Arthritis / Q000235:genetics* / Q000276:immunology; D005817:Genetic Counseling; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006801:Humans; D013167:Spondylitis, Ankylosing / Q000235:genetics* / Q000276:immunology
D006680:HLA Antigens; D006649:Histocompatibility Antigens