title: Detection and quantitation of phenotypically mixed viruses: mixing of ecotropic and xenotropic murine leukemia viruses.
mesh_terms: D002460:Cell Line; D005622:Friend murine leukemia virus / Q000254:growth & development; D008979:Moloney murine leukemia virus / Q000254:growth & development; D010641:Phenotype; D014762:Viral Interference; D010948:Viral Plaque Assay