title: Problems in the diagnosis of tetrahydrobiopterin deficiency.
authors.forename: J L
authors.initials: JL
authors.lastname: Dhondt
authors.forename: M
authors.initials: M
authors.lastname: Meyer
authors.forename: G
authors.initials: G
authors.lastname: Malpuech
mesh_terms: D001708:Biopterins / Q000031:analogs & derivatives* / Q000172:deficiency; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007231:Infant, Newborn
chemical_list: D001708:Biopterins; C003402:sapropterin