title: Spontaneous autoimmunity and involution of the lymphoid system.
mesh_terms: D000375:Aging; D000818:Animals; D000974:Antibodies, Antinuclear / Q000032:analysis; D000917:Antibody Formation; D007114:Immunization; D008208:Lymphatic System / Q000502:physiology*; D051379:Mice; D008805:Mice, Inbred A; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D013045:Species Specificity; D013601:T-Lymphocytes / Q000276:immunology; D013934:Thymectomy
chemical_list: D000974:Antibodies, Antinuclear