1. Department of Neurology, Montreal Neurological Institute , Montreal, Quebec H3A 2B4 , Canada
2. Nuffield Department of Clinical Neurosciences, Division of Neurology and Oxford Parkinson’s Disease Centre, University of Oxford , Oxford OX3 9DU , UK
3. Department of Neurology, Seoul National University College of Medicine, Seoul National University Hospital , 03080 Seoul , Republic of Korea
4. Clinic for Sleep & Chronomedicine, St. Hedwig-Krankenhaus , 10115 Berlin , Germany
5. Medical University Innsbruck, Department of Neurology , 6020 Innsbruck , Austria
6. Department of Neurology and Center of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital , 116 36 Prague , Czech Republic
7. Sleep Medicine and Epilepsy Unit, IRCCS Mondino Foundation , 27100 Pavia , Italy
8. Department of Brain and Behavioral Sciences, University of Pavia , 27100 Pavia , Italy
9. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Clinical Neurology, University of Genoa , 16132 Genoa , Italy
10. IRCCS Ospedale Policlinico San Martino , 16132 Genoa , Italy
11. Department of Neurology, Massachusetts General Hospital, Harvard Medical School , Boston, MA 02114 , USA
12. Department of Neurology, The University of Texas Health Science Center at Houston , Houston, TX 77030 , USA
13. Department of Neurology, University of Rostock , 18147 Rostock , Germany
14. Department of Neurology, Seoul National University College of Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center , 07061 Seoul , South Korea
15. Sleep Disorders Center, Vita-Salute San Raffaele University , 20132 Milan , Italy
16. ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, School of Medical Sciences, University of Sydney , Sydney, NSW 2006 , Australia
17. Department of Clinical Neurophysiology, CHU de Nantes , 44000 Nantes , France
18. Nantes Université, Inserm, TENS, The Enteric Nervous System in Gut and Brain Diseases , 44000 Nantes , France
19. Department of Neurology and Section on Clinical Neuroscience, Philipps University Marburg , 35037 Marburg , Germany
20. Institute for Neurogenomics, Helmholtz Center for Health and Environment , 85764 München, Neuherberg , Germany
21. Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona , 37121 Verona , Italy
22. Paracelsus Elena Klinik, Centre for Movement Disorders , 34128 Kassel , Germany
23. EuroMov Digital Health in Motion, University of Montpellier, IMT Mines Ales , 34090 Montpellier , France
24. Department of Neurology and Sleep, Beau Soleil Clinic , 34070 Montpellier , France
25. Sleep Medicine Center, Department of Systems Medicine, University of Rome Tor Vergata , 00133 Rome , Italy
26. Neurology Unit, University Hospital of Rome Tor Vergata , 00133 Rome , Italy
27. Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , 200025 Shanghai , China
28. Department of Biomedical and Neuromotor Sciences, University of Bologna , 40127 Bologna , Italy
29. IRCCS Istituto delle Scienze Neurologiche di Bologna , 40127 Bologna , Italy
30. Sleep Center, Department of Medical Sciences and Public Health, University of Cagliari , 09124 Cagliari , Italy
31. Department of Medical, Surgical Sciences and Advanced Technologies, GF Ingrassia, University of Catania , 95124 Catania , Italy
32. Department of Neurology, University Hospital Bern (Inselspital) , 3010 Bern , Switzerland
33. National Institute of Mental Health, Klecany, Third Faculty of Medicine, Charles University , 110 00 Prague , Czech Republic
34. Sleep Unit, Department of Neurology, Hôpital Gui de Chauliac , Montpellier, F-34093 Cedex 5 , France
35. Clinical Neurophysiology Research Unit, Oasi Research Institute-IRCCS , 94018 Troina , Italy
36. Centre d’Études Avancées en Médecine du Sommeil, Hôpital du Sacré-Cœur de Montréal , Montréal, Quebec H4J 1C5 , Canada
37. Department of Psychology, Université du Québec à Montréal , Montréal, Quebec H2L 2C4 , Canada
38. School of Social and Community Medicine, Bristol Medical School, University of Bristol , Bristol BS8 1QU , UK
39. Department of Kinesiology and Health Sciences, University of Waterloo , Waterloo, Ontario N2L 3G1 , Canada
40. Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio-Emilia , 41121 Modena , Italy
41. Department of Neurosurgery, University Medical Center Goettingen , 37075 Göttingen , Germany
42. Department of Surgery and Medical-Surgical Specialties, University of Catania , 95123 Catania , Italy
43. Department of Neurology, Kangbuk Samsung Hospital , 04514 Seoul , Republic of Korea