Ankylosing spondylitis and allied disorders (spondyloarthropathies).
D001171:Arthritis, Juvenile / Q000235:genetics; D005819:Genetic Markers; D006680:HLA Antigens / Q000235:genetics*; D015796:HLA-B27 Antigen; D000949:Histocompatibility Antigens Class II / Q000235:genetics; D006801:Humans; D007136:Immunoglobulins / Q000235:genetics; D044469:Racial Groups; D013122:Spinal Diseases / Q000235:genetics* / Q000276:immunology; D013167:Spondylitis, Ankylosing / Q000235:genetics* / Q000276:immunology
D005819:Genetic Markers; D006680:HLA Antigens; D015796:HLA-B27 Antigen; D000949:Histocompatibility Antigens Class II; D007136:Immunoglobulins