The effects of tryptophan and tyrosine on human mood and performance.
D004644:Emotions / Q000187:drug effects*; D006801:Humans; D011498:Protein Precursors / Q000494:pharmacology*; D011597:Psychomotor Performance / Q000187:drug effects*; D014364:Tryptophan / Q000494:pharmacology*; D014443:Tyrosine / Q000494:pharmacology*
D011498:Protein Precursors; D014443:Tyrosine; D014364:Tryptophan