No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Humans
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Lactones*
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Male
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Medication Errors / prevention & control*
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Piperazines*
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Purines
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Sildenafil Citrate
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Sulfones
Substances
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Lactones
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Piperazines
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Purines
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Sulfones
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rofecoxib
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Sildenafil Citrate