1 Department of Neurology I.C., Sleep Research Centre, Oasi Research Institute, IRCCS, Troina, Italy.
2 ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.
3 Sleep and Neurology Department, Beau Soleil Clinic and EuroMov, Digital Health in Motion, University of Montpellier, Montpellier, France.
4 Division of Sleep Medicine, Kansai Electric Power Medical Research Institute, Osaka, Japan.
5 Department of Neurology and Center for Sleep-related Disorders, Kansai Electric Power Hospital, Osaka, Japan.
6 Department of Psychiatry/Sleep Medicine, Stanford University School of Medicine, 450 Broadway Street, MC 5704 Pavilion C, 2nd Floor, Redwood City, CA, 94063, USA.
7 Department of Psychiatry, Minnesota Regional Sleep Disorders Center, Hennepin County Medical Center, University of Minnesota Medical School, Minneapolis, MN, USA.