No abstract available
MeSH terms
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Adult
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Autonomic Nerve Block / adverse effects
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Cocaine / pharmacology
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Darkness
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Epinephrine / pharmacology
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Guanethidine / adverse effects*
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Horner Syndrome / chemically induced*
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Humans
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Iris / drug effects
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Light
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Pupil / drug effects*
Substances
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Cocaine
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Epinephrine
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Guanethidine