Ankylosing spondylitis, HLA-b27 and Bf.
D000483:Alleles; D011415:Complement Factor B / Q000235:genetics; D000939:Epitopes; D006680:HLA Antigens / Q000032:analysis; D006801:Humans; D013167:Spondylitis, Ankylosing / Q000235:genetics*
D000939:Epitopes; D006680:HLA Antigens; D011415:Complement Factor B