1. Sleep Disorders Unit, National Reference Center for Narcolepsy and Hypersomnia, Neurology Department; Gui de Chauliac Hospital; Montpellier France
2. National Institute of Health and Medical Research U1061; Montpellier France
3. University of Montpellier; Montpellier France
4. Department of Neurology; Second Affiliated Hospital of Soochow University; Suzhou China