No abstract available
MeSH terms
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Africa / epidemiology
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Analgesics, Opioid / adverse effects*
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Health Policy
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Humans
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Opioid-Related Disorders / epidemiology*
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Population Surveillance
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Substance Withdrawal Syndrome / epidemiology
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Tramadol / adverse effects*
Substances
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Analgesics, Opioid
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Tramadol