1. Health Promotion and Health Behavior Program, School of Social and Behavioral Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR
2. Department of Family Medicine and Public Health, Moores Cancer Center, University of California San Diego, La Jolla, CA
3. Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR
4. Division of Health Policy, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA