No abstract available
MeSH terms
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Aged
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Biopsy / methods
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Carcinoma / pathology
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Carcinoma / surgery*
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Colonic Neoplasms / pathology
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Colonic Neoplasms / surgery*
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Colonoscopy
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Electrocoagulation
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Female
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Gastroscopy
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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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Stomach Neoplasms / surgery*