title: Internal activity of the immune system and its physiologic significance.
mesh_terms: D001323:Autoantibodies / Q000032:analysis; D001402:B-Lymphocytes / Q000276:immunology*; D006801:Humans; D007107:Immune System / Q000502:physiology*; D007130:Immunoglobulin Idiotypes / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D007130:Immunoglobulin Idiotypes