title: An attempt of hybridization of Rous sarcoma virus and parotitis virus.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000254:growth & development*; D002642:Chick Embryo; D002999:Clone Cells; D046508:Culture Techniques; D006824:Hybridization, Genetic; D007106:Immune Sera; D009109:Mumps virus / Q000254:growth & development*; D014776:Virus Cultivation
chemical_list: D007106:Immune Sera