No abstract available
MeSH terms
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Analgesia*
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Analgesics, Opioid* / administration & dosage
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Analgesics, Opioid* / pharmacology
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Animals
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Enkephalin, Ala(2)-MePhe(4)-Gly(5)- / pharmacology
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Female
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Gonadal Steroid Hormones / pharmacology
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Humans
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Male
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Morphine / pharmacology
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Receptors, Opioid / drug effects*
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Sex Characteristics*
Substances
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Analgesics, Opioid
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Gonadal Steroid Hormones
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Receptors, Opioid
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Enkephalin, Ala(2)-MePhe(4)-Gly(5)-
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Morphine