1. Division of Health Care Policy and Research; Mayo Clinic; Rochester Minnesota USA
2. Rudd Center for Food Policy and Obesity; University of Connecticut; Hartford Connecticut USA
3. Department of Psychology; Yale University; New Haven Connecticut USA
4. Center for Chronic Disease Outcomes Research; Minneapolis Veterans Affairs Medical Center; Minneapolis Minnesota USA
5. Department of Medicine; University of Minnesota; Minneapolis Minnesota USA
6. Division of Health Policy and Management; University of Minnesota; Minneapolis Minnesota USA
7. Department of Psychological Science; University of Vermont; Burlington Vermont USA
8. Department of Family Medicine and Community Health; University of Minnesota; Minneapolis Minnesota USA