No abstract available
MeSH terms
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Angiography
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Colon
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Endoscopy
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Fiber Optic Technology
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Gastrointestinal Diseases / complications
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Gastrointestinal Diseases / diagnosis
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Gastrointestinal Hemorrhage / diagnosis*
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Gastrointestinal Hemorrhage / etiology
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Gastroscopy
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Humans
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Laparotomy
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Radionuclide Imaging