1. Department of Epidemiology, Human Genetics and Environmental Health, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX
2. Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA
3. Division of Sleep Medicine, Department of Medicine, Harvard Medical School, Boston, MA
4. Research Institute, California Pacific Medical Center Research Institute, San Francisco, CA
5. Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital and Beth Israel Deaconess Medical Center, Boston, MA
6. Center for Musculoskeletal Health, Medicine and Rheumatology, University of California at Davis School of Medicine, Sacramento, CA
7. Departments of Psychiatry and Medicine, University of California, San Diego, La Jolla, CA
8. Department of Veterans Affairs San Diego Center of Excellence for Stress and Mental Health, La Jolla, CA