No abstract available
MeSH terms
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Adenocarcinoma / pathology*
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Adolescent
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Adult
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Aged
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Aged, 80 and over
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Female
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Humans
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Lymphatic Metastasis
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Male
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Middle Aged
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Neoplasm Invasiveness
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Neoplasm Staging
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Prospective Studies
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Rectal Neoplasms / pathology*
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Ultrasonography*