title: HLA B27 in ankylosing spondylitis in India.
mesh_terms: D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006801:Humans; D007194:India; D008297:Male; D013167:Spondylitis, Ankylosing / Q000175:diagnosis / Q000453:epidemiology* / Q000235:genetics
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens