No abstract available
MeSH terms
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Ampulla of Vater / abnormalities*
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Cholangiopancreatography, Endoscopic Retrograde
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Common Bile Duct / abnormalities*
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Common Bile Duct / diagnostic imaging*
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Gallstones / diagnostic imaging
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Gallstones / therapy
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Humans
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Male
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Middle Aged
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Narrow Band Imaging*
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Stomach / abnormalities*