No abstract available
MeSH terms
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Administration, Inhalation
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Administration, Oral
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Aged
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Aged, 80 and over
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Analgesics, Opioid / administration & dosage
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Cross-Over Studies
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Double-Blind Method
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Dyspnea / prevention & control*
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Female
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Humans
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Hydromorphone / administration & dosage*
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Injections, Intra-Arterial
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Male
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Middle Aged
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Nebulizers and Vaporizers
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Pilot Projects
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Sodium Chloride / administration & dosage*
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Treatment Outcome
Substances
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Analgesics, Opioid
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Sodium Chloride
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Hydromorphone