No abstract available
MeSH terms
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Analgesics, Opioid / therapeutic use
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Bradycardia / etiology*
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Cluster Headache / complications*
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Cluster Headache / drug therapy
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Electrocardiography
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Humans
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Male
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Middle Aged
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Oxycodone / therapeutic use
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Sumatriptan / therapeutic use
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Syncope / etiology*
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Vasoconstrictor Agents / therapeutic use
Substances
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Analgesics, Opioid
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Vasoconstrictor Agents
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Sumatriptan
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Oxycodone