No abstract available
MeSH terms
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Adult
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Child, Preschool
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Female
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Humans
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Infant
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Japan / epidemiology
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Male
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Poliomyelitis / epidemiology
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Poliomyelitis / virology*
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Poliovirus / classification*
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Poliovirus / genetics
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Poliovirus / isolation & purification*
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Poliovirus Vaccine, Oral / immunology
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Population Surveillance