No abstract available
Publication types
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Clinical Trial
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Comparative Study
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Randomized Controlled Trial
MeSH terms
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Cimetidine / pharmacology
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Diphenhydramine / pharmacology
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Double-Blind Method
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Fentanyl / pharmacology*
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Hemodynamics / drug effects
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Histamine Release / drug effects*
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Humans
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Morphine / pharmacology*
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Phenylephrine / pharmacology
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Random Allocation
Substances
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Phenylephrine
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Morphine
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Cimetidine
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Diphenhydramine
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Fentanyl