title: Non-appearance of splenomegaly after injection of killed Bordetella pertussis cells into aged mice.
mesh_terms: D000367:Age Factors; D000818:Animals; D005260:Female; D007114:Immunization; D051379:Mice; D008815:Mice, Inbred Strains; D009929:Organ Size; D010567:Pertussis Vaccine / Q000494:pharmacology*; D013154:Spleen / Q000276:immunology / Q000502:physiology; D013163:Splenomegaly / Q000276:immunology*
chemical_list: D010567:Pertussis Vaccine