No abstract available
MeSH terms
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Administration, Inhalation
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Heroin / administration & dosage
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Heroin / adverse effects*
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Heroin Dependence / complications*
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Heroin Dependence / diagnosis*
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Humans
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Paraplegia / chemically induced*
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Paraplegia / diagnosis
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Spinal Cord / drug effects
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Spinal Cord / pathology
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Spinal Cord Diseases / chemically induced*
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Spinal Cord Diseases / diagnosis