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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Antigens, Viral / analysis*
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Antigens, Viral / genetics
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Birds / virology*
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Hemagglutinin Glycoproteins, Influenza Virus / analysis*
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Hemagglutinin Glycoproteins, Influenza Virus / genetics
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Influenza A virus / classification
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Influenza A virus / genetics
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Influenza A virus / isolation & purification*
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Influenza A virus / pathogenicity*
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Influenza in Birds / virology*
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Phylogeny
Substances
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Antigens, Viral
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Hemagglutinin Glycoproteins, Influenza Virus
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hemagglutinin, avian influenza A virus