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27. Investigation of some possibilities of producing type 3 vaccine poliovirus with greater genetic stability. I. Preliminary experiments with passage variants. Elbert LB, Chumakov MP, Krutyanskaya GL, Ralph NM, Tyufanov AV. Acta Virol; 1968 May; 12(3):193-202. PubMed ID: 4385148 [No Abstract] [Full Text] [Related]
33. Developments in the production and quality control of poliovirus vaccines -- historical perspectives. Furesz J. Biologicals; 2006 Jun 28; 34(2):87-90. PubMed ID: 16621594 [Abstract] [Full Text] [Related]
38. Mass trivalent oral polio vaccination in primary school age children in Teheran. Nategh R, Naficy K, Shahriary M. Trop Geogr Med; 1970 Sep 28; 22(3):303-6. PubMed ID: 5470897 [No Abstract] [Full Text] [Related]