title: A rapid radiometric assay for dihydrofolate reductase.
mesh_terms: D002250:Carbon Radioisotopes; D005492:Folic Acid; D007553:Isotope Labeling / Q000379:methods; D007700:Kinetics; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013762:Tetrahydrofolate Dehydrogenase / Q000032:analysis*; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D014316:Tritium; D005492:Folic Acid; D013762:Tetrahydrofolate Dehydrogenase