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Abstract
Keywords: POLIOMYELITIS/prevention and control
Mesh: See more » HumansPoliomyelitis/prevention & controlPoliovirus VaccinesUnited States
Substances: See more » Poliovirus Vaccines
Year: 1957 PMID: 13426595 PMCID: PMC1973730
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447