No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Child
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Child, Preschool
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Endoscopy / methods*
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Foreign Bodies / surgery
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Humans
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Intestinal Neoplasms / surgery*
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Intestinal Polyps / surgery*
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Intestine, Large / surgery
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Middle Aged
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Polyps / surgery*
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Posture
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Stomach Neoplasms / surgery*