1. Department of Psychiatry and Human Behavior; Alpert Medical School of Brown University, The Miriam Hospital Weight Control and Diabetes Research Center; Providence Rhode Island USA
2. Departments of Health Behavior and Nutrition; UNC Gillings School of Global Public Health, University of North Carolina; Chapel Hill, Chapel Hill North Carolina USA
3. Department of Biostatistical Sciences; Wake Forest School of Medicine, Wake Forest University; Winston-Salem North Carolina USA
4. Department of Medicine; Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham; Birmingham Alabama USA