1. Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut
2. Department of Chronic Disease Epidemiology, Yale University School of Public Health, New Haven, Connecticut
3. Division of General Internal Medicine, University of California, Davis, School of Medicine, Sacramento
4. Department of Medicine, Yale University School of Medicine, New Haven, Connecticut
5. Tufts University School of Medicine, Boston, Massachusetts
6. Department of Emergency Medicine, New York University Grossman School of Medicine, New York, New York