["Immune system" its fundamental concept].
D000818:Animals; D000917:Antibody Formation; D000937:Antigen-Antibody Reactions; D000941:Antigens / Q000276:immunology; D015551:Autoimmunity; D000939:Epitopes / Q000276:immunology; D005802:Genes, MHC Class II; D006801:Humans; D007108:Immune Tolerance; D007109:Immunity; D007111:Immunity, Cellular; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*
D000941:Antigens; D000939:Epitopes