title: Immunologic deficiencies in senescence. I. Characterization of intrinsic deficiencies.
mesh_terms: D000375:Aging; D000818:Animals; D000921:Antibody-Producing Cells; D000941:Antigens / Q000008:administration & dosage; D001853:Bone Marrow / Q000276:immunology; D001854:Bone Marrow Cells; D004912:Erythrocytes / Q000276:immunology; D007153:Immunologic Deficiency Syndromes; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D012756:Sheep / Q000276:immunology; D013154:Spleen / Q000166:cytology / Q000276:immunology; D013950:Thymus Gland / Q000166:cytology / Q000276:immunology
chemical_list: D000941:Antigens