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Q33751060-A1D1DFDF-9131-4E7E-8C77-7202F0543043
Q33751060-A1D1DFDF-9131-4E7E-8C77-7202F0543043
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33751060-A1D1DFDF-9131-4E7E-8C77-7202F0543043
Comparison of a drug versus money and drug versus drug self-administration choice procedure with oxycodone and morphine in opioid addicts.
P2860
Q33751060-A1D1DFDF-9131-4E7E-8C77-7202F0543043
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33751060-A1D1DFDF-9131-4E7E-8C77-7202F0543043
rank
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type
BestRank
Statement
wasDerivedFrom
78506af7d141e3a3ba0de94968fb8f5e8a6e7185
P2860
Role of key informants and direct patient interviews in epidemiological studies of substance abuse.