No abstract available
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Aged, 80 and over
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Anesthesia / adverse effects*
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Anesthesia / methods
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Frail Elderly*
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Humans
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Middle Aged
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Postoperative Complications / epidemiology*
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Postoperative Complications / prevention & control
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United States / epidemiology