1. Medical Practice Evaluation Center
2. Division of General Internal Medicine
3. Division of Infectious Diseases
4. Yale School of Public Health, New Haven, Connecticut
5. Department of Pediatrics, Massachusetts General Hospital
6. Division of Infectious Diseases, Brigham and Women’s Hospital
7. Harvard University Center for AIDS Research, Harvard Medical School
8. Department of Epidemiology, Boston University School of Public Health, and
9. Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, Massachusetts