No abstract available
MeSH terms
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Congo / epidemiology
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Female
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Gallbladder Neoplasms / diagnostic imaging
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Gallbladder Neoplasms / epidemiology*
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Gallbladder Neoplasms / etiology
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Hospitalization / statistics & numerical data
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Humans
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Middle Aged
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Retrospective Studies
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Risk Factors
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Sex Distribution
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Ultrasonography