[1] Univ Penn, Perelman Sch Med, Dept Psychiat, Behav Sleep Med Program, Philadelphia, PA 19104 USA
[2] Univ Penn, Ctr Sleep & Circadian Neurobiol, Philadelphia, PA 19104 USA
[3] Univ Chicago, Dept Med, Sect Pulm Crit Care, Chicago, IL 60637 USA
[4] RAND Corp, Pittsburgh, PA USA
[5] SUNY Stony Brook, Program Publ Hlth, Stony Brook, NY 11794 USA
[6] NYU, Sch Med, Dept Populat Hlth, New York, NY USA
[7] NYU, Sch Med, Dept Psychiat, New York, NY USA
[8] SUNY Buffalo, Res Inst, Buffalo, NY 14260 USA