1. Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey, USA.
2. Division of General Medicine and Geriatrics, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.
3. Division of Infectious Diseases, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, USA.
4. Department of Psychiatry, University of California, San Diego, La Jolla, California, USA.
5. Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
6. Division of Infectious Diseases, Hennepin Health Care, Minneapolis, Minnesota, USA.
7. Department of Medicine, University of California San Francisco, San Francisco, California, USA.
8. Department of Epidemiology and Robert N. Butler Columbia Aging Center, Mailman School of Public Health, Columbia University, New York, New York, USA.
9. ACRIA Center on HIV & Aging at Gay Men's Health Crisis (GMHC) and College of Nursing, New York University, New York, New York, USA.
10. Department of Medicine, University of California, San Diego, La Jolla, California, USA.
11. Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA.
12. Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
13. Department of Medicine, University of Colorado-Anschutz Medical Campus, Aurora, Colorado, USA.