No abstract available
MeSH terms
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Analgesia / methods*
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Analgesics, Opioid / administration & dosage*
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Autonomic Nerve Block*
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Buprenorphine / administration & dosage*
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Clinical Trials as Topic / methods
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Drug Administration Schedule
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Facial Pain / drug therapy*
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Headache / drug therapy*
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Humans
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Placebo Effect
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Research Design
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Stellate Ganglion*
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Treatment Outcome
Substances
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Analgesics, Opioid
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Buprenorphine