No abstract available
MeSH terms
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Aged
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Aged, 80 and over
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Catheterization / methods*
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Cholangiopancreatography, Endoscopic Retrograde / instrumentation
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Cholangiopancreatography, Endoscopic Retrograde / methods*
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Choledocholithiasis / therapy*
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Endoscopes
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Equipment Failure
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Female
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Humans
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Male
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Sphincter of Oddi*