title: Indications for an internal regulation in the immune system.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000235:genetics / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology; D007109:Immunity; D007130:Immunoglobulin Idiotypes / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000906:Antibodies; D007130:Immunoglobulin Idiotypes