No abstract available
MeSH terms
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Acetylcholine / pharmacology*
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Animals
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Cholinergic Agents / pharmacology*
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Female
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Humans
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Pregnancy
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Receptors, Muscarinic / drug effects*
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Umbilical Veins / drug effects*
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Vasoconstriction / drug effects*
Substances
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Cholinergic Agents
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Receptors, Muscarinic
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Acetylcholine