title: The role of T cell subsets and Ia antigens in delayed-type hypersensitivity.
mesh_terms: D000375:Aging; D000818:Animals; D000917:Antibody Formation; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D006968:Hypersensitivity, Delayed / Q000276:immunology*; D051379:Mice; D051381:Rats; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology*; D014165:Transfer Factor / Q000276:immunology
chemical_list: D000949:Histocompatibility Antigens Class II; D014165:Transfer Factor