1. Center for Biostatistics in AIDS Research, Harvard T. H. Chan School of Public Health , Boston, Massachusetts , USA
2. Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles , Los Angeles, California , USA
3. Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Cambridge, Massachusetts , USA
4. Department of Laboratory Medicine and Pathology, University of Washington , Seattle, Washington , USA
5. National Institutes of Health , Rockville, Maryland , USA
6. Department of Medicine, University of Washington , Seattle, Washington , USA
7. Lundquist Institute at Harbor-University of California, Los Angeles Medical Center , Torrance, California , USA
8. Department of Medicine, Chapel Hill School of Medicine, University of North Carolina , Chapel Hill, North Carolina , USA
9. Department of Medicine, University of California, San Diego , La Jolla, California , USA
10. Department of Biostatistics, Harvard T. H. Chan School of Public Health , Boston, Massachusetts , USA