L-tryptophan in depression.
D002986:Clinical Trials as Topic; D003863:Depression / Q000188:drug therapy*; D006801:Humans; D008996:Monoamine Oxidase Inhibitors / Q000627:therapeutic use; D014364:Tryptophan / Q000627:therapeutic use*
D008996:Monoamine Oxidase Inhibitors; D014364:Tryptophan