1. The University of Houston, Department of Psychology, Houston, TX
2. The University of Houston, Department of Psychological, Health, and Learning Sciences, Houston, TX
3. The University of Oklahoma Health Sciences Center, Oklahoma Tobacco Research Center, Suite 400, Oklahoma City, OK
4. The University of Texas MD Anderson Cancer Center, Department of Behavioral Science, Unit 1330, Houston, TX
5. The University of Houston, Department of Health and Human Performance, Houston, TX, USA