Studies in the mechanism of action of serotonin precursors in depression.
D003863:Depression / Q000188:drug therapy*; D006801:Humans; D011498:Protein Precursors / Q000502:physiology*; D012701:Serotonin / Q000502:physiology*; D014364:Tryptophan / Q000627:therapeutic use*
D011498:Protein Precursors; D012701:Serotonin; D014364:Tryptophan