1. Division of Psychiatry; Haukeland University Hospital; Bergen Norway
2. K.G. Jebsen Centre for Neuropsychiatric Disorders; Department of Biomedicine; University of Bergen; Bergen Norway
3. Department of Biological and Medical Psychology; University of Bergen; Bergen Norway
4. Department of Global Public Health and Primary Care; University of Bergen; Bergen Norway
5. Norwegian Competence Center for Sleep Disorders; Haukeland University Hospital; Bergen Norway