scholarly journals Microinjection of the δ-opioid receptor selective antagonist naltrindole 5′-isothiocyanate site specifically affects cocaine self-administration in rats responding under a progressive ratio schedule of reinforcement

2007 ◽  
Vol 182 (1) ◽  
pp. 140-144 ◽  
Author(s):  
S WARD ◽  
D ROBERTS
1999 ◽  
Vol 147 (2) ◽  
pp. 135-142 ◽  
Author(s):  
E. C. Donny ◽  
A. R. Caggiula ◽  
M. M. Mielke ◽  
S. Booth ◽  
M. A. Gharib ◽  
...  

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