title: Lack of a macrophage defect in presentation of antigens under Ir gene control.
mesh_terms: D000804:Angiotensin II / Q000235:genetics / Q000276:immunology; D000805:Angiotensin III / Q000235:genetics / Q000276:immunology; D000818:Animals; D000954:Antigens, Surface / Q000235:genetics*; D003433:Crosses, Genetic; D000939:Epitopes; D005802:Genes, MHC Class II; D006168:Guinea Pigs; D008213:Lymphocyte Activation; D008264:Macrophages / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000954:Antigens, Surface; D000939:Epitopes; D000804:Angiotensin II; D000805:Angiotensin III