1. Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
2. Kaiser Permanente Mid-Atlantic States, Mid-Atlantic Permanente Research Institute, Rockville, Maryland
3. Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia
4. Department of Medicine, University of Calgary, Calgary, Alberta, Canada
5. Department of Medicine, Yale University, West Haven, Connecticut
6. National Cancer Institute, Bethesda, Maryland
7. Division of General Internal Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
8. Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York
9. Department of Medicine, University of California, San Diego, San Diego
10. Center for Population Health Sciences, Stanford University School of Medicine, Stanford, California
11. Department of Medicine, Yale University School of Medicine, New Haven, Connecticut
12. Department of Medicine, University of Washington, Seattle
13. Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia
14. Center for Pharmacoepidemiology Research and Training, Perelman School of Medicine, Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia
15. Perelman School of Medicine, Department of Medicine, University of Pennsylvania, Philadelphia
16. Department of Medicine, Johns Hopkins University, Baltimore, Maryland
17. Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
18. Department of Medicine, University of California, San Francisco, San Francisco
19. Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois
20. Kaiser Permanente Northern California, Oakland
21. Retrovirus Research Center, Department of Medicine, Universidad Central del Caribe School of Medicine, Bayamon, Puerto Rico
22. Department of Medicine, University of Washington School of Medicine, Seattle
23. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
24. Division of Infectious Diseases and Chronic Viral Illness Service, McGill University Health Centre, Montreal, Quebec, Canada