No abstract available
MeSH terms
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Animals
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Biliary Tract Diseases / surgery
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Chronic Disease
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Endocrine System Diseases / surgery
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Gallstones / surgery
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Humans
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Kidney Calculi / surgery
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Neoplasms / surgery
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Pancreatic Neoplasms / surgery
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Pancreatitis / surgery
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Surgical Procedures, Operative / standards*
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Ultrasonics / instrumentation
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Ultrasonography*
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Vascular Surgical Procedures / standards