The HL-A polymorphism.
D000818:Animals; D000941:Antigens; D003429:Cross Reactions; D005796:Genes; D006648:Histocompatibility; D006689:Hodgkin Disease; D006801:Humans; D007125:Immunogenetics; D016030:Kidney Transplantation; D007938:Leukemia; D007962:Leukocytes / Q000276:immunology*; D051379:Mice; D009154:Mutation; D014181:Transplantation Immunology; D014184:Transplantation, Homologous
D000941:Antigens