1. Center for Investigation and Research in Sleep, University Hospital of Lausanne, Lausanne, Switzerland.
2. Department of Internal Medicine and University Hospital of Lausanne, Lausanne, Switzerland.
3. Department of Pulmonary, University Hospital of Lausanne, Lausanne, Switzerland.
4. Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy.
5. Department of Biological, Geological and Environmental Sciences (BiGeA), Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, Bologna, Italy.
6. Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA.