title: Ankylosing spondylitis and the HL-A antigen, W27.
mesh_terms: D000741:Anemia, Aplastic / Q000209:etiology; D002140:California; D004739:England; D000939:Epitopes; D005260:Female; D006649:Histocompatibility Antigens; D006801:Humans; D007198:Indians, North American; D007938:Leukemia / Q000209:etiology; D008214:Lymphocytes / Q000276:immunology; D008297:Male; D012737:Sex Factors; D013167:Spondylitis, Ankylosing / Q000235:genetics / Q000276:immunology* / Q000532:radiotherapy; D044465:White People
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens