A rapid radioassay for folic acid reductase and amethopterin.
D000818:Animals; D006801:Humans; D007962:Leukocytes / Q000201:enzymology; D008099:Liver / Q000201:enzymology; D008727:Methotrexate / Q000032:analysis*; D011200:Poultry; D011817:Rabbits; D011874:Radiometry; D013762:Tetrahydrofolate Dehydrogenase / Q000032:analysis*; D014316:Tritium
D014316:Tritium; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate