1. Department of Neurology and Neurological Sciences, Stanford University, Palo Alto, California
2. Stanford Center for Sleep Sciences and Medicine, Department of Psychiatry and Behavioral Sciences, Stanford University Medical Center, Redwood City, California
3. Stanford/VA Alzheimer’s Center, VA Palo Alto Health Care System, Palo Alto, California
4. Sierra Pacific Mental Illness Research Education and Clinical Centers, VA Palo Alto Health Care System, Palo Alto, California
5. Division of Pulmonary and Sleep Medicine, Mayo Clinic, Jacksonville, Florida
6. Department of Neurology and Sleep Center, Emory School of Medicine, Atlanta, Georgia