1. Paul Merage School of Business, University of California, Irvine.
2. Department of Psychology and Social Behavior, University of California, Irvine.
3. Department of Pharmacology, and University of California, Irvine, Transdisciplinary Tobacco Use Research Center (UCI TTURC), University of California, Irvine.
4. Department of Pharmacology, and UCI TTURC, University of California, Irvine.