1. Department of Population Health and Disease Prevention, Society and Behavior, Program in Public Health, College of Health Sciences, University of California, Irvine, California, USA.
2. Department of Health, Society and Behavior, Program in Public Health, College of Health Sciences, University of California, Irvine, California, USA.
3. The Paul Merage School of Business, University of California, Irvine, California, USA.
4. Public Health Institute, Berkeley, California, USA.