No abstract available
MeSH terms
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Animals
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Electric Stimulation
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Muscle Contraction / drug effects*
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Muscle, Smooth / drug effects
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Neuromuscular Junction / drug effects
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Norepinephrine / metabolism
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Norepinephrine / pharmacology*
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Portal Vein / innervation
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Portal Vein / physiology
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Rats
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Receptors, Adrenergic
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Synaptic Transmission / drug effects*
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Tetrodotoxin / pharmacology
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Time Factors
Substances
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Receptors, Adrenergic
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Tetrodotoxin
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Norepinephrine