title: Letter: Lack of antigenic correlations between brain and thymus.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology; D001717:Birds; D001921:Brain / Q000276:immunology*; D006224:Cricetinae; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes; D006801:Humans; D007106:Immune Sera; D051379:Mice; D011817:Rabbits; D051381:Rats; D013601:T-Lymphocytes / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology*
chemical_list: D000939:Epitopes; D007106:Immune Sera