1. Department of Global and Community Health, College of Public Health, George Mason University, Fairfax, VA;
2. Brandeis University, Heller School for Social Policy and Management, Waltham, MA;
3. INOVA Health System, Fairfax, VA;
4. Department of Epidemiology and Biostatistics, School of Public Health, University of Maryland, College Park, MD;
5. The Fenway Institute, Fenway Health, Boston, MA;
6. Department of Medicine, Beth Israel Deaconess Medical Center;
7. Harvard Medical School, Boston, MS;
8. David Geffen School of Medicine, University of California, Los Angeles, CA; and
9. Department of Behavioral and Community Health, School of Public Health, University of Maryland, College Park, MD.