No abstract available
MeSH terms
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Congenital Abnormalities / epidemiology*
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Female
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Fetal Growth Retardation / epidemiology*
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Guillain-Barre Syndrome / epidemiology*
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Humans
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Influenza A Virus, H1N1 Subtype*
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Influenza Vaccines / adverse effects*
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Influenza, Human / prevention & control*
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Male
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Population Surveillance*
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Pregnancy
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Premature Birth / epidemiology*