title: [Research on the metabolites resulting from the conversion of tryptophan to nicotinic acid in the urine of patients with bladder neoplasms].
mesh_terms: D006801:Humans; D009525:Niacin / Q000378:metabolism*; D009539:Nicotinic Acids; D012106:Research; D014364:Tryptophan / Q000378:metabolism*; D001749:Urinary Bladder Neoplasms
chemical_list: D009539:Nicotinic Acids; D009525:Niacin; D014364:Tryptophan
keywords: BLADDER/neoplasms; NICOTINIC ACID/metabolism; TRYPTOPHAN/metabolism