title: The determination of methotrexate in serum and urine.
mesh_terms: D000818:Animals; D002417:Cattle; D005069:Evaluation Studies as Topic; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008099:Liver / Q000201:enzymology; D008722:Methods; D008727:Methotrexate / Q000032:analysis* / Q000097:blood / Q000652:urine; D008832:Microchemistry; D013050:Spectrometry, Fluorescence; D013762:Tetrahydrofolate Dehydrogenase
chemical_list: D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate