title: Ia positive cells in the medulla of rat thymus are bone marrow derived.
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D001853:Bone Marrow / Q000276:immunology / Q000502:physiology; D001854:Bone Marrow Cells; D002454:Cell Differentiation; D002465:Cell Movement; D005802:Genes, MHC Class II; D008214:Lymphocytes / Q000166:cytology / Q000276:immunology; D051379:Mice; D011828:Radiation Chimera; D051381:Rats; D011919:Rats, Inbred Strains; D013950:Thymus Gland / Q000166:cytology* / Q000276:immunology / Q000502:physiology
chemical_list: D000911:Antibodies, Monoclonal