1. Department of Statistics, Northwestern University, Evanston, IL, USA.
2. Center for Impact Sciences, Harris School of Public Policy, University of Chicago, Chicago, IL, USA.
3. Impact Genome Project, Mission Measurement, Chicago, IL, USA.
4. Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Providence, RI, USA.
5. Department of Psychiatry and Human Behavior, Alpert School of Medicine, Brown University, Providence, RI, USA.
6. Office of Behavioral and Social Science Research, National Institutes of Health, Bethesda, MD, USA.
7. Division of Nutrition, Physical Activity, and Obesity, Centers for Disease Control and Prevention, Atlanta, GA, USA.