title: High association of an HL-A antigen, W27, with ankylosing spondylitis.
mesh_terms: D000961:Antilymphocyte Serum; D001172:Arthritis, Rheumatoid / Q000235:genetics / Q000276:immunology; D044383:Black People; D003429:Cross Reactions; D008040:Genetic Linkage; D006073:Gout / Q000235:genetics / Q000276:immunology; D006579:Heterozygote; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006720:Homozygote; D006801:Humans; D008214:Lymphocytes / Q000276:immunology; D010641:Phenotype; D013167:Spondylitis, Ankylosing / Q000235:genetics / Q000276:immunology*; D044465:White People
chemical_list: D000961:Antilymphocyte Serum; D006649:Histocompatibility Antigens