title: Tryptophan and depression.
authors.forename: C
authors.initials: C
authors.lastname: Barbui
authors.forename: S
authors.initials: S
authors.lastname: Garattini
mesh_terms: D000339:Affect; D003863:Depression / Q000209:etiology*; D003866:Depressive Disorder / Q000209:etiology; D005260:Female; D006801:Humans; D012008:Recurrence; D012701:Serotonin / Q000172:deficiency / Q000502:physiology; D014364:Tryptophan / Q000097:blood / Q000172:deficiency*
chemical_list: D012701:Serotonin; D014364:Tryptophan