No abstract available
MeSH terms
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Adenocarcinoma / diagnostic imaging*
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Adenocarcinoma / pathology
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Aged
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Aged, 80 and over
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Gallbladder Neoplasms / diagnostic imaging*
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Gallbladder Neoplasms / pathology
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Humans
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Lymphatic Metastasis
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Male
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Neoplasm Invasiveness
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Ultrasonography