title: Purification and assay of murine leukemia viruses.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D002460:Cell Line; D009052:Leukemia Virus, Murine / Q000032:analysis / Q000201:enzymology / Q000302:isolation & purification*; D008722:Methods; D051379:Mice; D012194:RNA-Directed DNA Polymerase / Q000032:analysis; D011863:Radioimmunoassay / Q000379:methods; D014764:Viral Proteins / Q000032:analysis
chemical_list: D000914:Antibodies, Viral; D014764:Viral Proteins; D012194:RNA-Directed DNA Polymerase