title: The circadian system: circuits-cells-clock genes.
authors.forename: Horst-Werner
authors.initials: HW
authors.lastname: Korf
authors.forename: Jörg H
authors.initials: JH
authors.lastname: Stehle
mesh_terms: D000818:Animals; D001683:Biological Clocks / Q000235:genetics*; D001921:Brain / Q000502:physiology*; D002940:Circadian Rhythm / Q000235:genetics*; D009434:Neural Pathways / Q000502:physiology*