Nicotinic acid metabolism in humans.  I.  The urinary excretion of nicotinic acid and its metabolic derivatives on four levels of dietary intake.
D004032:Diet; D006801:Humans; D009525:Niacin / Q000652:urine*; D009539:Nicotinic Acids; D014364:Tryptophan / Q000494:pharmacology*; D014556:Urine
D009539:Nicotinic Acids; D009525:Niacin; D014364:Tryptophan
DIETS/effects; NICOTINIC ACID/in urine; TRYPTOPHAN/effects; URINE