1. University of Connecticut, Department of Allied Health Sciences , Storrs, CT , USA
2. University of Connecticut, Rudd Center for Food Policy and Health , Hartford, CT , USA
3. University of Minnesota, Department of Family Medicine and Community Health , Minneapolis, MN , USA
4. HealthPartners , Bloomington, MN , USA
5. University of Minnesota, Department of Applied Economics , St. Paul, MN , USA
6. University of Minnesota, Division of Biostatistics , Minneapolis, MN , USA