title: Cross-species transmission of mammalian RNA tumor viruses.
mesh_terms: D000818:Animals; D002415:Cats; D005622:Friend murine leukemia virus; D051379:Mice; D009374:Neoplasms, Experimental; D009858:Oncogenic Viruses; D012328:RNA Viruses; D051381:Rats; D012190:Retroviridae; D012513:Sarcoma, Experimental