No abstract available
Publication types
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Comparative Study
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English Abstract
MeSH terms
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Cholecystectomy
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Colectomy
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Heparin / therapeutic use*
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Herniorrhaphy
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Humans
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Middle Aged
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Postoperative Complications / prevention & control*
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Pulmonary Embolism / prevention & control*
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Surgical Procedures, Operative*
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Thrombophlebitis / prevention & control*