title: Isolation of a fibroblast nonproducer cell line containing the Friend strain of the spleen focus-forming virus.
mesh_terms: D000818:Animals; D002460:Cell Line; D002471:Cell Transformation, Neoplastic; D002999:Clone Cells; D005260:Female; D005347:Fibroblasts; D005622:Friend murine leukemia virus / Q000254:growth & development*; D006378:Helper Viruses / Q000254:growth & development; D051379:Mice; D008807:Mice, Inbred BALB C; D010641:Phenotype; D012190:Retroviridae / Q000254:growth & development; D013154:Spleen / Q000382:microbiology*; D014779:Virus Replication