No abstract available
MeSH terms
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Carcinoma, Squamous Cell / pathology*
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Carcinoma, Squamous Cell / secondary
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Cholestasis / diagnosis*
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Diagnosis, Differential
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Duodenal Neoplasms / diagnosis*
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Duodenal Neoplasms / pathology
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Duodenal Neoplasms / secondary*
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Duodenoscopy
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Humans
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Lung Neoplasms / pathology*
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Male
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Middle Aged