title: Assay for methotrexate in nanomolar concentrations with simultaneous detection of citrovorum factor and vincristine.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002955:Leucovorin / Q000032:analysis*; D008727:Methotrexate / Q000032:analysis*; D008832:Microchemistry / Q000379:methods; D013050:Spectrometry, Fluorescence; D014750:Vincristine / Q000032:analysis*
chemical_list: D014750:Vincristine; D002955:Leucovorin; D008727:Methotrexate