No abstract available
MeSH terms
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Analgesics, Opioid / adverse effects
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Analgesics, Opioid / classification
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Analgesics, Opioid / therapeutic use*
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Chronic Disease
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Comorbidity
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Dose-Response Relationship, Drug
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Drug Administration Schedule
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General Practice
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Germany
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Humans
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Long-Term Care
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Pain / drug therapy*
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Pain / etiology