Smethells, J. R., Harris, A. C., Burroughs, D., Hursh, S. R., & LeSage, M. G. (2018). Substitutability of nicotine alone and an electronic cigarette liquid using a concurrent choice assay in rats: A behavioral economic analysis. Drug Alcohol Depend.

Smethells, John R., Andrew C. Harris, Danielle Burroughs, Steven R. Hursh, and Mark G. LeSage. "Substitutability of Nicotine Alone and an Electronic Cigarette Liquid Using a Concurrent Choice Assay in Rats: A Behavioral Economic Analysis." Drug Alcohol Depend 2018.

Smethells, John R., et al. "Substitutability of Nicotine Alone and an Electronic Cigarette Liquid Using a Concurrent Choice Assay in Rats: A Behavioral Economic Analysis." Drug Alcohol Depend 2018.