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12. [On the problem of foreign viruses in viral vaccines, produced on the chick embryo base. 1. Group of poultry tumor viruses]. Starke G, Glathe H, Hlinak P. Pharmazie; 1968 Dec; 23(12):669-78. PubMed ID: 4304716 [No Abstract] [Full Text] [Related]
16. Viral oncogenesis and results of inoculation of normal and transformed cells into nonhuman primates--discussion. Stevenson RE. Natl Cancer Inst Monogr; 1968 Dec; 29():333-4. PubMed ID: 4976361 [No Abstract] [Full Text] [Related]