No abstract available
Publication types
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Clinical Trial
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Comparative Study
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English Abstract
MeSH terms
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Aged
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Clinical Trials as Topic
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Humans
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Nutrition Disorders / complications
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Nutrition Disorders / prevention & control
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Parenteral Nutrition*
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Postoperative Complications / prevention & control*
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Preoperative Care*
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Prognosis
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Random Allocation
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Risk
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Surgical Procedures, Operative*