title: Expression of Ia antigens by mouse Peyer's patch cells.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology; D000949:Histocompatibility Antigens Class II; D008221:Lymphoid Tissue / Q000276:immunology*; D051379:Mice; D008808:Mice, Inbred CBA; D010581:Peyer's Patches / Q000166:cytology / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000949:Histocompatibility Antigens Class II