No abstract available
MeSH terms
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Child, Preschool
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Choristoma / pathology*
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Choristoma / surgery
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Endoscopy, Gastrointestinal / methods
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Gastric Mucosa*
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Humans
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Intestinal Polyps / pathology*
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Intestinal Polyps / surgery
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Male
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Rectal Diseases / pathology*
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Rectal Diseases / surgery