[1] Univ Hosp Zurich, Dept Neurol, Zurich, Switzerland
[2] Univ N Carolina, Dept Psychiat, Chapel Hill, NC 27515 USA
[3] Swiss Fed Inst Technol Zurich ETHZ, Dept Hlth Sci & Technol, Zurich, Switzerland
[4] Univ Childrens Hosp Zurich, Child Dev Ctr & Pediat Sleep Disorders Ctr, Zurich, Switzerland
[5] Univ Zurich, Univ Clin Child & Adolescent Psychiat, Zurich, Switzerland