2 Hephata Klinik, Schwalmstadt and Philipps University, Marburg, Germany.
3 Sleep-Wake Disorders Center of the Montefiore Medical Center, Bronx, NY.
4 Department of Neurology, Albert Einstein College of Medicine, Bronx, NY.
5 Department of Neurology, National Reference Centre for Orphan Diseases, Narcolepsy, Rare Hypersomnias, Sleep Disorders Center, Gui-de-Chauliac Hospital, Inserm, U1061, Université Montpellier, Montpellier, France.