No abstract available
MeSH terms
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Aged
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COVID-19 / complications*
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COVID-19 / epidemiology
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Comorbidity
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Critical Illness / epidemiology*
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Female
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Gastrointestinal Diseases / epidemiology
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Gastrointestinal Diseases / etiology*
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Humans
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Incidence
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Male
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Middle Aged
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Pandemics*
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United States / epidemiology