1. Division of Nutrition and Physical Activity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
2. Wisconsin Department of Health and Family Services; Wisconsin Public Health and Health Policy Institute, Madison, WI
3. The Emerging Investigations and Analytic Methods Branch, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
4. Rheumatology Department, The Marshfield Clinic, Marshfield, WI
5. Bureau of Healthcare Information, Wisconsin Department of Health and Family Services, Madison WI