No abstract available
MeSH terms
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Administration, Inhalation
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Adult
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Anesthetics / adverse effects
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Anesthetics / therapeutic use
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Humans
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Magnetic Resonance Imaging / methods
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Male
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Nitrous Oxide / adverse effects*
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Nitrous Oxide / therapeutic use
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Subacute Combined Degeneration / etiology*
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Substance-Related Disorders / complications*
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Substance-Related Disorders / etiology
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Vitamin B 12
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Vitamin B 12 Deficiency / etiology
Substances
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Anesthetics
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Nitrous Oxide
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Vitamin B 12