title: ASSESSMENT OF NICOTINIC ACID STATUS OF POPULATION GROUPS.
mesh_terms: D000349:Africa; D000353:Africa, Southern; D044383:Black People; D002648:Child; D006801:Humans; D008660:Metabolism; D009525:Niacin; D009536:Niacinamide; D009539:Nicotinic Acids; D009749:Nutrition Surveys; D044382:Population Groups; D011725:Pyridines; D014364:Tryptophan; D014556:Urine
chemical_list: D009539:Nicotinic Acids; D011725:Pyridines; D009536:Niacinamide; D009525:Niacin; D014364:Tryptophan
keywords: AFRICA, SOUTHERN; CHILD; METABOLISM; NEGROES; NICOTINAMIDE; NICOTINIC ACID; NUTRITION SURVEYS; PYRIDINES; TRYPTOPHAN; URINE