title: Tetrahydrobiopterin and quinonoid dihydrobiopterin concentrations in CSF from patients with dihydropteridine reductase deficiency.
authors.affiliation: Institute of Child Health, London, UK.
authors.forename: K
authors.initials: K
authors.lastname: Hyland
authors.forename: S J
authors.initials: SJ
authors.lastname: Heales
mesh_terms: D000592:Amino Acid Metabolism, Inborn Errors / Q000134:cerebrospinal fluid* / Q000201:enzymology; D001708:Biopterins / Q000031:analogs & derivatives* / Q000134:cerebrospinal fluid; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D009422:Nervous System Diseases / Q000235:genetics / Q000378:metabolism; D010088:Oxidoreductases / Q000134:cerebrospinal fluid / Q000172:deficiency*
chemical_list: D001708:Biopterins; D010088:Oxidoreductases; C022513:quinonoid dihydropterin reductase; C003402:sapropterin