HLA--B27 and Chinese ankylosing spondylitis.
D002681:China / Q000208:ethnology; D006680:HLA Antigens / Q000235:genetics*; D015796:HLA-B27 Antigen; D006801:Humans; D012846:Singapore; D013167:Spondylitis, Ankylosing / Q000276:immunology*
D006680:HLA Antigens; D015796:HLA-B27 Antigen