title: Evaluation of severe insomnia in the general population--implications for the management of insomnia: focus on results from Belgium.
authors.affiliation: CHU Brugmann Sleep Unit, Brussels, Belgium.
authors.forename: G
authors.initials: G
authors.lastname: Hoffmann
mesh_terms: D001530:Belgium / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D007319:Sleep Initiation and Maintenance Disorders / Q000453:epidemiology* / Q000523:psychology / Q000628:therapy*; D012893:Sleep Wake Disorders / Q000453:epidemiology