No abstract available
MeSH terms
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Aged
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Aged, 80 and over
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Biliary Tract Neoplasms / surgery*
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Biliary Tract Surgical Procedures
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Digestive System Surgical Procedures
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Hepatectomy
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Humans
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Liver Neoplasms / surgery*
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Middle Aged
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Pancreatectomy
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Pancreatic Neoplasms / surgery*