Methotrexate and folic reductase in human cancer.
D006801:Humans; D008727:Methotrexate / Q000378:metabolism* / Q000494:pharmacology; D009369:Neoplasms / Q000378:metabolism*; D013762:Tetrahydrofolate Dehydrogenase / Q000032:analysis*
D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate