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Ethanol consumption and ethanol-dependent conditioning in control and PEE rats. (A) Free choice of ethanol (10%) solution or water consumption was measured for 24 h in male rats. The graph shows the ratio between ethanol and water consumption, each point corresponds to one litter. Ethanol conditioning place preference was measured in male (B) and female (C) rats. N is indicated into the bars. **P < 0.01 (unpaired Student's t-test).
