1. Sleep Disorders Center and Pulmonary Division; University Hospital of Zurich; Zurich Switzerland
2. Epidemiology, Biostatistics and Prevention Institute; University of Zurich; Zurich Switzerland
3. National Institute for Health Research (NIHR) Oxford Biomedical Research Centre based at Oxford University Hospitals NHS Foundation Trust and University of Oxford; Oxford UK
4. Center for Interdisciplinary Sleep Research; University of Zurich; Zurich Switzerland