1. Sorbonne Universities, UPMC Univ Paris 06, Paris, France
2. Brain Research Institute (CRICM - UPMC-Paris6), Paris, France
3. Sleep Disorders Unit, Pitié-Salpêtrière University Hospital, Paris, France
4. Department of Biostatistics, Salpêtrière Hospital, ER4, Sorbonne Universites, UPMC Univ Paris 06, Paris, France