No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
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Research Support, Non-U.S. Gov't
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Research Support, N.I.H., Extramural
MeSH terms
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Analgesics, Opioid / adverse effects
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Child
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Codeine / adverse effects
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Communication
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Humans
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Tramadol* / adverse effects
Substances
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Tramadol
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Codeine
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Analgesics, Opioid