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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Abortion, Spontaneous / epidemiology*
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Abortion, Spontaneous / etiology
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COVID-19 / prevention & control
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COVID-19 Vaccines / adverse effects*
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Case-Control Studies
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Female
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Humans
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Norway / epidemiology
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Odds Ratio
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Pregnancy
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Pregnancy Trimester, First
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Registries
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Vaccination / adverse effects*