No abstract available
MeSH terms
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Aged
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Colon, Sigmoid*
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Female
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Humans
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Intestinal Perforation / epidemiology
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Intestinal Perforation / etiology*
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Intestinal Perforation / mortality
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Intestinal Perforation / surgery
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Male
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Middle Aged
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Rectal Diseases / epidemiology
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Rectal Diseases / etiology*
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Rectal Diseases / mortality
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Rectal Diseases / surgery