1. Department of Pulmonology and Sleep Disorders Centre, University Hospital of Zurich, Zurich, Switzerland;
2. Department of Cardiology, University Heart Centre, University Zurich, Zurich, Switzerland;
3. Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland;
4. Faculty of Life Sciences and Medicine, King’s College London, United Kingdom;
5. Centre for Interdisciplinary Sleep Research, University of Zurich, Zurich, Switzerland