title: The role of melatonin and light in the human circadian system.
authors.affiliation: Department of Psychiatry, Oregon Health Sciences University, Portland 97201, USA.
authors.forename: A J
authors.initials: AJ
authors.lastname: Lewy
authors.forename: R L
authors.initials: RL
authors.lastname: Sack
mesh_terms: D002940:Circadian Rhythm / Q000502:physiology*; D006801:Humans; D008550:Melatonin / Q000502:physiology*; D010775:Photic Stimulation
chemical_list: D008550:Melatonin