title: Hydroxylase cofactor in human CSF--an index of central aminergic activity.
mesh_terms: D001708:Biopterins / Q000134:cerebrospinal fluid*; D006801:Humans; D008722:Methods; D011621:Pteridines / Q000134:cerebrospinal fluid*
chemical_list: D011621:Pteridines; D001708:Biopterins