No abstract available
MeSH terms
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Analgesics, Opioid / pharmacology*
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Humans
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Infant, Newborn / growth & development
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Infant, Newborn / metabolism
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Infant, Newborn / physiology*
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Morphine / pharmacology
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Opioid Peptides / physiology*
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Pain / physiopathology
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Receptors, Opioid / physiology
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Spinal Cord / growth & development
Substances
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Analgesics, Opioid
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Opioid Peptides
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Receptors, Opioid
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Morphine