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Opioid-Related Disorders
Cocaine-Related Disorders
Heroin Dependence
Methadone
Buprenorphine
Cocaine
Narcotic Antagonists
Narcotics
Desipramine
Methadyl Acetate
Antidepressive Agents, Tricyclic
Naloxone
Dopamine Uptake Inhibitors
Double-Blind Method
Drug Therapy, Combination
Drug Dose Response Relationship
Treatment Outcome
Analysis of Variance
Drug Administration Schedule
Discrimination Learning
Co-Publications
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