title: Tryptophan treatment and melatonin response in a patient with seasonal affective disorder.
authors.forename: A J
authors.initials: AJ
authors.lastname: Levitt
authors.forename: G M
authors.initials: GM
authors.lastname: Brown
authors.forename: S H
authors.initials: SH
authors.lastname: Kennedy
authors.forename: K
authors.initials: K
authors.lastname: Stern
mesh_terms: D005260:Female; D006801:Humans; D008550:Melatonin / Q000652:urine*; D008875:Middle Aged; D019964:Mood Disorders / Q000188:drug therapy* / Q000652:urine; D012621:Seasons; D014364:Tryptophan / Q000627:therapeutic use*
chemical_list: D014364:Tryptophan; D008550:Melatonin