title: Determining factor in the capacity of Rous sarcoma virus to induce tumors in mammals.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001358:Avian Sarcoma Viruses / Q000472:pathogenicity*; D002642:Chick Embryo; D006224:Cricetinae; D001357:Sarcoma, Avian / Q000209:etiology*