1. Institute for Nicotine and Tobacco Studies, Rutgers Biomedical and Health Sciences, New Brunswick, NJ, USA
2. Division of General Internal Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
3. Department of Psychology, Claremont Graduate University, Claremont, CA, USA
4. Centre for Wellbeing Science, University of Melbourne, Parkville, Victoria, Australia