title: Strain specificity in mouse mammary tumor virus virion antigens.
mesh_terms: D001355:Alpharetrovirus / Q000276:immunology; D000818:Animals; D000941:Antigens / Q000032:analysis*; D000956:Antigens, Viral / Q000032:analysis; D005779:Immunodiffusion; D008324:Mammary Tumor Virus, Mouse / Q000276:immunology; D051379:Mice; D013045:Species Specificity
chemical_list: D000941:Antigens; D000956:Antigens, Viral