1. California Pacific Medical Center Research Institute and San Francisco Coordinating Center, San Francisco, CA
2. Departments of Psychiatry and Medicine, University of California, San Diego, La Jolla, CA
3. University of California, San Diego, CA
4. University of California, San Francisco, CA
5. Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA
6. Center for Chronic Disease Outcomes Research, Veterans Affairs Medical Center, Minneapolis, MN; Department of Medicine and Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN
7. Department of Medicine, Stanford Prevention Research Center, Stanford University, Palo Alto, CA
8. Sleep Center, Neurologic Institute, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland OH
9. University of Colorado at Denver, Denver, CO
10. Departments of Psychiatry, Neurology, and Epidemiology, University of California, San Francisco, San Francisco, CA and the San Francisco VA Medical Center, San Francisco, CA
11. Department of Medicine, Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA