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Self Administration
Electroshock
Electric Stimulation
Injections, Intraventricular
Rats
Long Evans Rats
Heroin
Narcotics
Cocaine
Corticotropin-Releasing Hormone
Heroin Dependence
Food Deprivation
Cocaine-Related Disorders
Behavior, Addictive
Animal Behavior
Stress, Psychological
Reward
Cues
Time Factors
Recurrence
Co-Publications
10
4
3
2
1
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