No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
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Comment
MeSH terms
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Animals
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China / epidemiology
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Humans
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Influenza A Virus, H1N1 Subtype* / genetics
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Influenza A Virus, H1N2 Subtype / genetics
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Influenza A Virus, H3N2 Subtype / genetics
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Influenza, Human* / epidemiology
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Phylogeny
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Reassortant Viruses / genetics
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Swine