No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Cluster Analysis
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Disease Outbreaks*
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Genotype
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Hepatitis A / epidemiology*
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Hepatitis A / virology*
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Hepatitis A virus / classification*
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Hepatitis A virus / genetics*
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Hepatitis A virus / isolation & purification
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Humans
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Incidence
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Japan / epidemiology
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Polymerase Chain Reaction
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RNA, Viral / genetics