No abstract available
MeSH terms
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Abscess / epidemiology
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Abscess / etiology*
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Anus Diseases / epidemiology
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Anus Diseases / etiology*
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Causality
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Humans
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Incidence
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Rectal Fistula / epidemiology
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Rectal Fistula / etiology*
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Risk Factors
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Smoking / adverse effects*
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Smoking / epidemiology
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United States / epidemiology
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Veterans