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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Animals
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Antigenic Variation / genetics*
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China
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Ducks
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Humans
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Influenza A Virus, H7N9 Subtype / genetics
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Influenza A Virus, H7N9 Subtype / immunology*
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Influenza A Virus, H7N9 Subtype / isolation & purification
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Influenza in Birds / virology*
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Phylogeny
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Poultry