title: The human Ia system.
mesh_terms: D000818:Animals; D001172:Arthritis, Rheumatoid / Q000276:immunology; D001327:Autoimmune Diseases / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology; D001854:Bone Marrow Cells; D002454:Cell Differentiation; D055598:Chemical Phenomena; D002621:Chemistry; D003429:Cross Reactions; D003922:Diabetes Mellitus, Type 1 / Q000276:immunology; D000939:Epitopes; D006183:H-2 Antigens; D006680:HLA Antigens; D006801:Humans; D007519:Isoantigens; D007959:Lymphocyte Culture Test, Mixed; D008285:Major Histocompatibility Complex; D051379:Mice; D009103:Multiple Sclerosis / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000939:Epitopes; D006183:H-2 Antigens; D006680:HLA Antigens; D007519:Isoantigens