1. Neurology Department Medical Faculty University Hospital Bern Switzerland
2. Department of Neurology Sechenov First Moscow State Medical University Moscow Russia
3. Clinic of Pneumology and Allergology Center for Sleep Medicine and Respiratory Care Bethanien Hospital Institute of Pneumology at the University of Cologne Solingen Germany
4. Servizio di Epidemiologia e Biostatistica IRCCS Istituto delle Scienze Neurologiche di Bologna Ospedale Bellaria BolognaItaly
5. Department of Neurology OSR‐Turro Sleep Disorder Center Vita‐Salute San Raffaele University Milan Italy
6. Department of Pulmonary Medicine University and University Hospital Bern Bern Switzerland
7. PROMISE Department Division of Respiratory Medicine DiBiMIS University of Palermo and IBIM‐CNR Palermo Italy
8. Sleep Disorders Center Department of Pulmonary Medicine Sahlgrenska University Hospital Göteborg Sweden
9. Danish Center for Sleep Medicine Rigshospitalet Copenhagen Denmark
10. Department of Neurology University of Lille Lille France
11. Department of Neurology and Institute for Translational Neurology University of Muenster Muenster Germany
12. Child Neuropsychiatry Unit Gaslini Institute DINOGMI University of Genova Genoa Italy
13. Institute of Social and Preventive Medicine Universtity of Bern Bern Switzerland
14. Department of Health Research Methods, Evidence, and Impact McMaster University Hamilton ON Canada
15. Library and Information Service Leeds Teaching Hospitals NHS Trust LeedsUK
16. Sleep Research Unit Centre for Clinical Brain Sciences University of Edinburgh EdinburghUK
17. Department of Sleep Medicine Royal Infirmary of Edinburgh Edinburgh UK
18. Department of Respiratory and Sleep Medicine St Vincent’s University Hospital DublinIreland
19. School of Medicine University College Dublin Dublin Ireland
20. First Affiliated Hospital of Guangzhou Medical University Guangzhou China
21. Leeds Teaching Hospital NHS Trust LeedsUK
22. Medical School University of Leeds Leeds UK