title: Attempts to demonstrate infectious virus in human and bovine fibroblastic cells morphologically transformed in vitro by Rous sarcoma virus.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000302:isolation & purification* / Q000472:pathogenicity*; D002417:Cattle; D005347:Fibroblasts / Q000032:analysis*; D006801:Humans; D066298:In Vitro Techniques; D011200:Poultry; D014776:Virus Cultivation