No abstract available
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Biopsy, Fine-Needle
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Duodenal Neoplasms / pathology*
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Endoscopy, Gastrointestinal / adverse effects
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Endoscopy, Gastrointestinal / instrumentation*
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Endoscopy, Gastrointestinal / methods
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Esophageal Neoplasms / pathology*
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Female
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Humans
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Male
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Middle Aged
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Stomach Neoplasms / pathology*
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Surgical Instruments