title: Letter: L-dopa and 5-hydroxytryptophan therapy in phenylketonuria with normal phenylalanine-hydroxylase activity.
mesh_terms: D006916:5-Hydroxytryptophan / Q000008:administration & dosage / Q000627:therapeutic use*; D002230:Carbidopa / Q000008:administration & dosage / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D006801:Humans; D007223:Infant; D007980:Levodopa / Q000008:administration & dosage / Q000627:therapeutic use*; D010651:Phenylalanine Hydroxylase; D010661:Phenylketonurias / Q000188:drug therapy* / Q000201:enzymology
chemical_list: D007980:Levodopa; D006916:5-Hydroxytryptophan; D010651:Phenylalanine Hydroxylase; D002230:Carbidopa