No abstract available
MeSH terms
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Adult
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Azabicyclo Compounds
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Humans
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Hypnotics and Sedatives*
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Male
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Meperidine*
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Piperazines*
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Recurrence
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Substance-Related Disorders / etiology*
Substances
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Azabicyclo Compounds
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Hypnotics and Sedatives
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Piperazines
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zopiclone
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Meperidine