The discriminative stimulus effects of a nicotine-ethanol compound in rats: Extinction with the parts differs from the whole
Behavioral Neuroscience (2013) - Comment
pubmed: 24341714  doi: 10.1037/a0034824  issn: 1939-0084  issn: 0735-7044 

Joseph R. Troisi, Thomas F. Dooley, Elizabeth M. Craig