title: The clinical and biochemical effects of riboflavin and nicotinamide supplementation upon Bantu schoolchildren.
mesh_terms: D001361:Avitaminosis / Q000453:epidemiology; D044383:Black People; D001827:Body Height; D001835:Body Weight; D002648:Child; D004035:Diet Therapy; D006801:Humans; D009536:Niacinamide / Q000008:administration & dosage* / Q000652:urine; D010919:Placebos; D011728:Pyridones / Q000652:urine; D012256:Riboflavin / Q000008:administration & dosage* / Q000652:urine; D012257:Riboflavin Deficiency / Q000453:epidemiology; D013019:South Africa
chemical_list: D010919:Placebos; D011728:Pyridones; D009536:Niacinamide; D012256:Riboflavin