title: Treating phase typed chronobiologic sleep and mood disorders using appropriately timed bright artificial light.
mesh_terms: D002940:Circadian Rhythm; D006801:Humans; D008550:Melatonin / Q000097:blood*; D019964:Mood Disorders / Q000097:blood / Q000628:therapy*; D010789:Phototherapy; D012621:Seasons; D012893:Sleep Wake Disorders / Q000628:therapy*
chemical_list: D008550:Melatonin