title: Age-associated decline in theta antigen on spleen thymus-derived lymphocytes of B6CF1 mice.
mesh_terms: D000367:Age Factors; D000818:Animals; D000941:Antigens / Q000032:analysis*; D001666:Binding Sites, Antibody; D002462:Cell Membrane / Q000276:immunology; D005455:Fluorescent Antibody Technique; D007111:Immunity, Cellular; D051379:Mice; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000276:immunology*; D013950:Thymus Gland / Q000166:cytology
chemical_list: D000941:Antigens