1. Washington Center for Weight Management and Research, Arlington, Virginia
2. Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge
3. Novo Nordisk A/S, Søborg, Denmark
4. Weight Management Center, Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston
5. Dallas Diabetes Research Center at Medical City, Dallas, Texas
6. Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia
7. Department of Nutrition Sciences, University of Alabama at Birmingham
8. for the STEP 8 Investigators