No abstract available
MeSH terms
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Antigens, Viral / analysis
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Hospitals
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Humans
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Influenza A Virus, H1N1 Subtype* / immunology
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Influenza, Human / diagnosis
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Influenza, Human / epidemiology*
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Influenza, Human / virology
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Laboratories / organization & administration
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Pandemics*
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Population Surveillance*
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Role
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Spain / epidemiology
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Specimen Handling