Dihydrofolate reductase inhibition assay for methotrexate.
D005493:Folic Acid Antagonists; D006801:Humans; D007124:Immunoenzyme Techniques; D008727:Methotrexate / Q000097:blood*; D013053:Spectrophotometry
D005493:Folic Acid Antagonists; D008727:Methotrexate