[1] Stanford Univ, Sch Med, Stanford Sleep Epidemiol Res Ctr, Palo Alto, CA 94303 USA
[2] Hop Gui De Chauliac, Serv Neurol, Ctr Reference Natl Malad Rare Narcolepsie & Hyper, Montpellier, France
[3] Univ Pittsburgh, Sch Med, Dept Psychiat, Sleep Wake Disorders Workgrp DSM5, Pittsburgh, PA USA