title: [Principles and differential diagnosis of primary sleep disorders].
mesh_terms: D000293:Adolescent; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012893:Sleep Wake Disorders / Q000175:diagnosis* / Q000628:therapy
vernacular_title: Grundlagen und Differentialdiagnose primärer Schlafstörungen.