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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Psychopharmacology (Berl). 2016 Jun 18;233(15-16):2973–2984. doi: 10.1007/s00213-016-4343-5

Table 1.

Cocaine oral self-administration training procedures Drugs (conc/dose)

PCP (mg/ml) .25 .25 .125 .0625 0
ETOH (% wt/vol) 0 .5 1 2 2 2 2 2 2 2 1 .5 .25 0 0 0
Cocaine (mg/ml) 0 .0125 .025 .05 .1 .2 .2 .2 .2 .2 .4* .8*

0 = Water

*

Cocaine concentrations were presented in nonsystematic order