No abstract available
Publication types
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Clinical Trial
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Comparative Study
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English Abstract
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Randomized Controlled Trial
MeSH terms
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Adolescent
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Adult
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Aged
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Clinical Trials as Topic
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Double-Blind Method
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Female
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Humans
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Injections, Intramuscular
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Male
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Middle Aged
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Morphine / adverse effects*
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Morphine Derivatives / adverse effects*
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Nicotinic Acids / adverse effects
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Respiration / drug effects*
Substances
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Morphine Derivatives
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Nicotinic Acids
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Morphine
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nicomorphine