No abstract available
MeSH terms
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Analgesics, Opioid* / adverse effects
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Delayed-Action Preparations / therapeutic use
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Dyspnea / etiology
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Health Status
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Humans
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Morphine / therapeutic use
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Pulmonary Disease, Chronic Obstructive* / complications
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Pulmonary Disease, Chronic Obstructive* / drug therapy
Substances
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Analgesics, Opioid
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Delayed-Action Preparations
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Morphine