[1] Univ Calif San Diego, Dept Med, Pulm Crit Care & Sleep Med, La Jolla, CA USA
[2] Univ Calif San Diego, Dept Psychiat, La Jolla, CA USA
[3] Harvard Med Sch, Brigham & Womens Hosp, Div Sleep & Circadian Disorders, Boston, MA USA
[4] Univ Calif San Diego, Dept Neurosci, La Jolla, CA USA
[5] Univ Calif San Diego, Dept Psychiat, La Jolla, CA USA