No abstract available
MeSH terms
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Adenocarcinoma / complications*
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Adenocarcinoma / pathology
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Carcinoid Tumor / complications*
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Carcinoid Tumor / pathology
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Cell Differentiation
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Colonoscopy
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Gastrointestinal Hemorrhage / etiology*
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Gastrointestinal Hemorrhage / pathology
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Humans
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Immunohistochemistry
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Male
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Middle Aged
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Rectal Neoplasms / complications*
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Rectal Neoplasms / pathology
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Rectum