title: Letter: Ankylosing spondylitis in Polynesian races.
mesh_terms: D016918:Arthritis, Reactive / Q000453:epidemiology*; D005006:Ethnicity; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006801:Humans; D011114:Polynesia; D013167:Spondylitis, Ankylosing / Q000453:epidemiology*
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens