title: [On the problem of foreign viruses in viral vaccines, produced on the chick embryo base. 1. Group of poultry tumor viruses].
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000097:blood / Q000473:pathology; D001354:Avian Leukosis Virus; D001358:Avian Sarcoma Viruses / Q000472:pathogenicity; D001797:Blood Protein Electrophoresis; D002642:Chick Embryo; D003168:Complement Fixation Tests; D006224:Cricetinae; D046508:Culture Techniques; D004285:Dogs; D005347:Fibroblasts; D005455:Fluorescent Antibody Technique; D006168:Guinea Pigs; D000882:Haplorhini; D008722:Methods; D051379:Mice; D009858:Oncogenic Viruses; D011200:Poultry; D011817:Rabbits; D051381:Rats; D012190:Retroviridae; D001357:Sarcoma, Avian; D013678:Technology, Pharmaceutical; D014762:Viral Interference; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines
vernacular_title: Zur Problematk der Fremdviren bei Virusimpfstoffen, die auf Hühnerembryobasis produziert werden. 1. Gruppe der Gefl-ugeltumorvieren.