Involvement of the ventral tegmental area but not periaqueductal gray matter in the paradoxical rewarding and aversive effects of morphine.
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1980 ◽
Vol 189
(2)
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pp. 403-418
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1995 ◽
Vol 189
(2)
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pp. 93-96
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1986 ◽
Vol 22
(3)
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pp. 233-248
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2004 ◽
Vol 77
(3)
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pp. 557-566
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