The tryptophan load and pyridoxine deficiency.
D000328:Adult; D002845:Chromatography; D005260:Female; D006801:Humans; D007737:Kynurenine / Q000652:urine; D008297:Male; D008875:Middle Aged; D014364:Tryptophan / Q000008:administration & dosage*; D026681:Vitamin B 6 Deficiency / Q000652:urine*; D014977:Xanthurenates / Q000652:urine; D062367:ortho-Aminobenzoates / Q000652:urine
D014977:Xanthurenates; D062367:ortho-Aminobenzoates; D007737:Kynurenine; D014364:Tryptophan