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Macaca mulatta
Mouse
Rats
Self Administration
Reinforcement Schedule
Injections, Intravenous
Drug Dose Response Relationship
Cocaine
Narcotics
Receptors, Opioid
Ethanol
Methohexital
Ketamine
Alfentanil
Piperidines
Substance-Related Disorders
Substance Withdrawal Syndrome
Conditioning, Operant
Discrimination Learning
Animal Behavior
Co-Publications
96
18
17
15
9
7
6
5
4
3
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