title: Biochemical studies on cells infectd with RNA-containing tumor viruses.
mesh_terms: D000818:Animals; D002471:Cell Transformation, Neoplastic; D002642:Chick Embryo; D006224:Cricetinae; D046508:Culture Techniques; D006378:Helper Viruses; D006651:Histocytochemistry; D007942:Leukemia, Experimental / Q000473:pathology*; D008854:Microscopy, Electron; D051381:Rats; D001357:Sarcoma, Avian / Q000473:pathology*