[1] Brigham & Womens Hosp, Boston, MA USA
[2] Harvard Med Sch, Div Sleep & Circadian Disorders, Boston, MA USA
[3] Univ Queensland, Sch Elect Engn & Comp Sci, Brisbane, Qld, Australia
[4] Univ Gothenburg, Sahlgrenska Acad, Inst Med, Ctr Sleep & Vigilance Disorders, Gothenburg, Sweden