No abstract available
MeSH terms
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Child
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England
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Humans
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Immunization Schedule*
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Neutralization Tests*
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Poliomyelitis*
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Poliovirus Vaccine, Inactivated*
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Poliovirus Vaccine, Oral*
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Poliovirus Vaccines*
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Statistics as Topic*
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Vaccination*
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Vaccines*
Substances
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Poliovirus Vaccine, Inactivated
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Poliovirus Vaccine, Oral
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Poliovirus Vaccines
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Vaccines