Orally self-administered cocaine in rhesus monkeys: transition from negative or neutral behavioral effects to positive reinforcing effects
1993 ◽
Vol 32
(2)
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pp. 143-158
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1994 ◽
Vol 48
(4)
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pp. 935-940
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1992 ◽
Vol 30
(3)
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pp. 215-225
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2006 ◽
Vol 318
(1)
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pp. 223-229
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1979 ◽
Vol 23
(2)
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pp. 333-339
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