No abstract available
MeSH terms
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Animal Migration
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Animals
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Body Size
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Ducks / anatomy & histology
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Ducks / physiology
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Ducks / virology*
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Influenza A virus / pathogenicity*
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Influenza A virus / physiology
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Influenza in Birds / epidemiology
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Influenza in Birds / virology*
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Time Factors
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Virus Shedding