1. Department of Nutritional Sciences, Cornell University, Ithaca, NY, USA
2. Department of Health Behavior, University of North Carolina, Greensboro, NC, USA
3. Department of Public Health, East Carolina University, Greenville, NC, USA
4. Department Community Development and Applied Economics, University of Vermont, Burlington, VT, USA
5. Department of Ecological Agriculture and Food Systems, The Evergreen State College, Olympia, WA, USA