1. Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
2. Division of Sleep Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
3. Division of Sleep and Chronobiology, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
4. WWAMI Medical Education Program, Sleep and Performance Research Center, Washington State University, Spokane, WA
5. Department of Behavioral Biology, Walter Reed Army Institute of Research, Silver Spring, MD
6. Optalert Pty Ltd., Epworth Sleep Centre, Melbourne, Victoria, Australia
7. Department of Anatomy and Neurobiology, Washington University, St. Louis, MO