title: Low CSF hydroxylase cofactor (tetrahydrobiopterin) levels in inherited dystonia.
mesh_terms: D001708:Biopterins / Q000031:analogs & derivatives / Q000134:cerebrospinal fluid*; D002648:Child; D004421:Dystonia / Q000134:cerebrospinal fluid* / Q000235:genetics; D005260:Female; D006801:Humans; D011621:Pteridines / Q000134:cerebrospinal fluid*
chemical_list: D011621:Pteridines; D001708:Biopterins; C003402:sapropterin