title: Neural organization and cellular mechanisms of circadian pacemakers.
mesh_terms: D000818:Animals; D001048:Aplysia; D001921:Brain / Q000502:physiology*; D002645:Chickens; D002940:Circadian Rhythm; D005838:Genotype; D007473:Ion Channels / Q000502:physiology; D009043:Motor Activity / Q000502:physiology; D009154:Mutation; D009419:Nerve Tissue Proteins / Q000378:metabolism; D009434:Neural Pathways / Q000502:physiology; D009900:Optic Nerve / Q000502:physiology; D010786:Photoreceptor Cells / Q000502:physiology; D010870:Pineal Gland / Q000502:physiology; D012160:Retina / Q000502:physiology*; D012701:Serotonin / Q000378:metabolism; D013493:Suprachiasmatic Nucleus / Q000502:physiology
chemical_list: D007473:Ion Channels; D009419:Nerve Tissue Proteins; D012701:Serotonin