title: Different serotypes of B-tropic murine leukemia viruses and association with endogenous ecotropic viral loci.
mesh_terms: D000956:Antigens, Viral / Q000032:analysis*; D003429:Cross Reactions; D015683:Gene Products, gag; D005814:Genes, Viral; D009052:Leukemia Virus, Murine / Q000145:classification* / Q000235:genetics / Q000276:immunology; D011995:Recombination, Genetic; D012703:Serotyping; D014764:Viral Proteins / Q000235:genetics / Q000276:immunology*
chemical_list: D000956:Antigens, Viral; D015683:Gene Products, gag; D014764:Viral Proteins