1. Department of Medicine, Columbia University Medical Center, New York, New York
2. Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
3. Department of Medicine and the Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
4. Department of Medicine
5. Department of Environmental and Occupational Health Sciences and Department of Epidemiology, and
6. Department of Biostatistics, University of Washington, Seattle, Washington
7. Departments of Radiology, Medicine, and Biomedical Engineering, University of Iowa Carver College of Medicine, Iowa City, Iowa
8. Department of Epidemiology, Mailman School of Public Health, Columbia University Medical Center, New York, New York
9. Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts; and
10. Department of Medicine, VA Boston Healthcare System, Boston, Massachusetts