title: Lymphoid cells from senescent animals contain specific inhibitors of immune response.
mesh_terms: D000375:Aging; D000818:Animals; D000917:Antibody Formation; D002417:Cattle; D002478:Cells, Cultured; D005260:Female; D007108:Immune Tolerance; D008198:Lymph Nodes / Q000276:immunology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*; D051379:Mice; D008934:Mitogens
chemical_list: D008934:Mitogens