title: Letter: Interrelationships of ascorbic acid and tryptophan metabolism.
mesh_terms: D000349:Africa; D001205:Ascorbic Acid / Q000378:metabolism*; D044383:Black People; D005006:Ethnicity; D005260:Female; D006486:Hemosiderosis / Q000378:metabolism; D006801:Humans; D008297:Male; D008956:Models, Chemical; D010383:Pellagra / Q000378:metabolism; D012614:Scurvy / Q000378:metabolism; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D014364:Tryptophan; D001205:Ascorbic Acid