No abstract available
MeSH terms
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Heart Valve Diseases / surgery
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Heart Valve Prosthesis / adverse effects*
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Hemorrhage / chemically induced
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Humans
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New York City
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Postoperative Complications / prevention & control
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Prothrombin Time
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Thromboembolism / etiology
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Thromboembolism / mortality
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Thromboembolism / prevention & control*
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Warfarin / adverse effects
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Warfarin / therapeutic use*