title: Evidence for CSF accumulation of 5-methyltetrahydrofolate during repeated courses of methotrexate plus folinic acid rescue.
authors: B A
authors: BA
authors: Kamen
authors: T
authors: T
authors: Vietti
mesh_terms: D006801:Humans; D002955:Leucovorin / Q000008:administration & dosage*; D008727:Methotrexate / Q000008:administration & dosage; D013763:Tetrahydrofolates / Q000134:cerebrospinal fluid*
chemical_list: D013763:Tetrahydrofolates; D002955:Leucovorin; C005984:5-methyltetrahydrofolate; D008727:Methotrexate