The metabolic disorder in Hartnup disease.
D001259:Ataxia / Q000209:etiology*; D006250:Hartnup Disease; D006801:Humans; D008659:Metabolic Diseases; D010383:Pellagra; D014364:Tryptophan / Q000378:metabolism*
D014364:Tryptophan
ATAXIA/etiology; METABOLIC DISEASES; PELLAGRA; TRYPTOPHAN/metabolism