title: HL-A 27 in Crohn's disease.
mesh_terms: D003424:Crohn Disease / Q000150:complications / Q000276:immunology*; D006680:HLA Antigens / Q000032:analysis*; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D007592:Joint Diseases / Q000150:complications / Q000276:immunology; D012446:Sacroiliac Joint; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000276:immunology
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens