No abstract available
MeSH terms
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Antiphospholipid Syndrome / epidemiology*
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Autoimmune Diseases / epidemiology*
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Comorbidity
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Humans
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Infarction, Middle Cerebral Artery / epidemiology*
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Influenza Vaccines* / adverse effects
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Influenza Vaccines* / immunology
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Lupus Erythematosus, Systemic / epidemiology*