Nicotinic acid-tryptophan metabolism in certain diseases.
D006801:Humans; D007726:Krypton; D007727:Krypton Radioisotopes; D009525:Niacin / Q000652:urine*; D009539:Nicotinic Acids; D014364:Tryptophan / Q000652:urine*
D007727:Krypton Radioisotopes; D009539:Nicotinic Acids; D009525:Niacin; D007726:Krypton; D014364:Tryptophan
KRYPTON/radioactive; NICOTINIC ACID/in urine; TRYPTOPHAN/in urine