1. Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA 24061, USA
2. School of Journalism, University of Kansas, Lawrence, KS 66045, USA
3. Department of Agricultural and Applied Economics, Virginia Tech, Blacksburg, VA 24061, USA
4. Department of Health Promotion, Social and Behavioral Health, 986075 Nebraska Medical Center, University of Nebraska Medical Center, Omaha, NE 68198-6075, USA