title: The HLA system: introduction.
mesh_terms: D000818:Animals; D006183:H-2 Antigens / Q000235:genetics; D006680:HLA Antigens / Q000235:genetics; D006801:Humans; D051379:Mice; D009626:Terminology as Topic
chemical_list: D006183:H-2 Antigens; D006680:HLA Antigens