1. Medical Practice Evaluation Center, Massachusetts General Hospital , Boston, Massachusetts , USA
2. Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco , San Francisco, California , USA
3. Harvard Medical School , Boston, Massachusetts , USA
4. Division of Infectious Diseases, Brigham and Women's Hospital , Boston, Massachusetts , USA
5. Division of Infectious Diseases, Massachusetts General Hospital , Boston, Massachusetts , USA
6. Division of General Academic Pediatrics, Massachusetts General Hospital , Boston, Massachusetts , USA
7. Division of HIV and STD Programs, Los Angeles County Department of Public Health , Los Angeles, California , USA
8. Division of Infectious Diseases, Weill Cornell Medicine , New York, New York , USA
9. Center for AIDS Research, Harvard University , Cambridge, Massachusetts , USA
10. Department of Medicine, Division of Infectious Diseases, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina , USA
11. Division of General Internal Medicine, Massachusetts General Hospital , Boston, Massachusetts , USA
12. Department of Health Policy and Management, Harvard T. H. Chan School of Public Health , Boston, Massachusetts , USA