1. Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
2. IRCCS, Istituto delle Scienze Neurologiche, ASL di Bologna, Bologna, Italy
3. Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
4. Centre for Narcolepsy, Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, CA