No abstract available
MeSH terms
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Chromogranin A / analysis
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Colonoscopy
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Endoscopic Mucosal Resection / methods*
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Humans
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Male
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Margins of Excision
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Middle Aged
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Neoplasms, Multiple Primary / pathology
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Neoplasms, Multiple Primary / surgery*
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Neuroendocrine Tumors / pathology
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Neuroendocrine Tumors / surgery*
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Rectal Neoplasms / pathology
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Rectal Neoplasms / surgery*
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Rectum / pathology
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Rectum / surgery