RELATIONSHIP BETWEEN TRYPTOPHAN--NIACIN METABOLISM AND CHANGES IN  NITROGEN BALANCE.
D035843:Biomedical Research; D004032:Diet; D005243:Feces; D009525:Niacin; D009539:Nicotinic Acids; D009584:Nitrogen; D011506:Proteins / Q000378:metabolism*; D011725:Pyridines; D014364:Tryptophan; D014556:Urine
D009539:Nicotinic Acids; D011506:Proteins; D011725:Pyridines; D009525:Niacin; D014364:Tryptophan; D009584:Nitrogen
CLINICAL RESEARCH; DIET; FECES; NICOTINIC ACID; NITROGEN; PROTEIN METABOLISM; PYRIDINES; TRYPTOPHAN; URINE