No abstract available
MeSH terms
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Cholangitis, Sclerosing / complications
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Cholangitis, Sclerosing / pathology
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Colitis, Ulcerative / complications*
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Colonoscopy
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Colorectal Neoplasms / etiology*
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Colorectal Neoplasms / pathology
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Humans
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Precancerous Conditions / pathology*
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Risk Factors