Pope, D. A., Poe, L., Stein, J. S., Kaplan, B. A., Heckman, B. W., Epstein, L. H., & Bickel, W. K. (2018). Experimental tobacco marketplace: Substitutability of e-cigarette liquid for cigarettes as a function of nicotine strength. Tob Control.

Pope, Derek A., Lindsey Poe, Jeffrey S. Stein, Brent A. Kaplan, Bryan W. Heckman, Leonard H. Epstein, et Warren K. Bickel. "Experimental Tobacco Marketplace: Substitutability of E-cigarette Liquid for Cigarettes As a Function of Nicotine Strength." Tob Control 2018.

Pope, Derek A., et al. "Experimental Tobacco Marketplace: Substitutability of E-cigarette Liquid for Cigarettes As a Function of Nicotine Strength." Tob Control 2018.