No abstract available
MeSH terms
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Aged
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Ampulla of Vater / surgery*
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Cholangiopancreatography, Endoscopic Retrograde
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Endoscopes
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Endoscopy / methods*
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Female
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Gallstones / diagnostic imaging
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Gallstones / surgery*
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Humans
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Male
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Middle Aged
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Sphincter of Oddi / surgery*